Finding the Fourth Proportional to 113,508, 156,380.22 and 89,625.96

Step by Step Solution

1. Step 1: Write the proportion equation
   113,508 : 156,380.22 = 89,625.96 : x
2. Step 2: Convert to fraction form
   113,508/156,380.22 = 89,625.96/x
3. Step 3: Cross multiply
   113,508x = 156,380.22 × 89,625.96
4. Step 4: Simplify right side
   113,508x = 14,015,727,342.51
5. Step 5: Solve for x
   x = 14,015,727,342.51/113,508
6. Step 6: Final answer
   x = 123,477.88