Finding the Fourth Proportional to 124,715.83, 172,111.22 and 74,443.99

Step by Step Solution

1. Step 1: Write the proportion equation
   124,715.83 : 172,111.22 = 74,443.99 : x
2. Step 2: Convert to fraction form
   124,715.83/172,111.22 = 74,443.99/x
3. Step 3: Cross multiply
   124,715.83x = 172,111.22 × 74,443.99
4. Step 4: Simplify right side
   124,715.83x = 12,812,645,568.35
5. Step 5: Solve for x
   x = 12,812,645,568.35/124,715.83
6. Step 6: Final answer
   x = 102,734.72