Finding the Fourth Proportional to 113,381.72, 156,414.43 and 73,108.42

Step by Step Solution

1. Step 1: Write the proportion equation
   113,381.72 : 156,414.43 = 73,108.42 : x
2. Step 2: Convert to fraction form
   113,381.72/156,414.43 = 73,108.42/x
3. Step 3: Cross multiply
   113,381.72x = 156,414.43 × 73,108.42
4. Step 4: Simplify right side
   113,381.72x = 11,435,210,694.89
5. Step 5: Solve for x
   x = 11,435,210,694.89/113,381.72
6. Step 6: Final answer
   x = 100,855.86