Finding the Fourth Proportional to 116,783,691.39, 161,154,990.86 and 64,569,591.27

Step by Step Solution

1. Step 1: Write the proportion equation
   116,783,691.39 : 161,154,990.86 = 64,569,591.27 : x
2. Step 2: Convert to fraction form
   116,783,691.39/161,154,990.86 = 64,569,591.27/x
3. Step 3: Cross multiply
   116,783,691.39x = 161,154,990.86 × 64,569,591.27
4. Step 4: Simplify right side
   116,783,691.39x = 10,405,711,890,627,938
5. Step 5: Solve for x
   x = 10,405,711,890,627,938/116,783,691.39
6. Step 6: Final answer
   x = 89,102,440.30