Finding the Fourth Proportional to 113,188,415.81, 156,189,707.10 and 65,495,426.56

Step by Step Solution

1. Step 1: Write the proportion equation
   113,188,415.81 : 156,189,707.10 = 65,495,426.56 : x
2. Step 2: Convert to fraction form
   113,188,415.81/156,189,707.10 = 65,495,426.56/x
3. Step 3: Cross multiply
   113,188,415.81x = 156,189,707.10 × 65,495,426.56
4. Step 4: Simplify right side
   113,188,415.81x = 10,229,711,490,795,960
5. Step 5: Solve for x
   x = 10,229,711,490,795,960/113,188,415.81
6. Step 6: Final answer
   x = 90,377,724.77