Finding the Fourth Proportional to 101,363,779,812.90, 139,882,154,662.18 and 55,014,207,769.50

Step by Step Solution

1. Step 1: Write the proportion equation
   101,363,779,812.90 : 139,882,154,662.18 = 55,014,207,769.50 : x
2. Step 2: Convert to fraction form
   101,363,779,812.90/139,882,154,662.18 = 55,014,207,769.50/x
3. Step 3: Cross multiply
   101,363,779,812.90x = 139,882,154,662.18 × 55,014,207,769.50
4. Step 4: Simplify right side
   101,363,779,812.90x = 7,695,505,919,830,502,932,480
5. Step 5: Solve for x
   x = 7,695,505,919,830,502,932,480/101,363,779,812.90
6. Step 6: Final answer
   x = 75,919,681,902.50