Finding the Fourth Proportional to 113,665,685.28, 156,846,932.44 and 83,912,158.04

Step by Step Solution

1. Step 1: Write the proportion equation
   113,665,685.28 : 156,846,932.44 = 83,912,158.04 : x
2. Step 2: Convert to fraction form
   113,665,685.28/156,846,932.44 = 83,912,158.04/x
3. Step 3: Cross multiply
   113,665,685.28x = 156,846,932.44 × 83,912,158.04
4. Step 4: Simplify right side
   113,665,685.28x = 13,161,364,582,994,484
5. Step 5: Solve for x
   x = 13,161,364,582,994,484/113,665,685.28
6. Step 6: Final answer
   x = 115,790,130.95