Finding the Fourth Proportional to 120,314,570.42, 166,034,317.65 and 65,310,464.18

Step by Step Solution

1. Step 1: Write the proportion equation
   120,314,570.42 : 166,034,317.65 = 65,310,464.18 : x
2. Step 2: Convert to fraction form
   120,314,570.42/166,034,317.65 = 65,310,464.18/x
3. Step 3: Cross multiply
   120,314,570.42x = 166,034,317.65 × 65,310,464.18
4. Step 4: Simplify right side
   120,314,570.42x = 10,843,778,355,531,068
5. Step 5: Solve for x
   x = 10,843,778,355,531,068/120,314,570.42
6. Step 6: Final answer
   x = 90,128,554.82