Finding the Fourth Proportional to 113,730.96, 156,782.58 and 79,632

Step by Step Solution

1. Step 1: Write the proportion equation
   113,730.96 : 156,782.58 = 79,632 : x
2. Step 2: Convert to fraction form
   113,730.96/156,782.58 = 79,632/x
3. Step 3: Cross multiply
   113,730.96x = 156,782.58 × 79,632
4. Step 4: Simplify right side
   113,730.96x = 12,484,910,410.56
5. Step 5: Solve for x
   x = 12,484,910,410.56/113,730.96
6. Step 6: Final answer
   x = 109,775.83