Finding the Fourth Proportional to 199,724,066.70, 299,574,142.83 and 83,109,970.50

Step by Step Solution

1. Step 1: Write the proportion equation
   199,724,066.70 : 299,574,142.83 = 83,109,970.50 : x
2. Step 2: Convert to fraction form
   199,724,066.70/299,574,142.83 = 83,109,970.50/x
3. Step 3: Cross multiply
   199,724,066.70x = 299,574,142.83 × 83,109,970.50
4. Step 4: Simplify right side
   199,724,066.70x = 24,897,598,173,164,084
5. Step 5: Solve for x
   x = 24,897,598,173,164,084/199,724,066.70
6. Step 6: Final answer
   x = 124,659,980.06