Finding the Fourth Proportional to 123,109.34, 169,861.95 and 74,710.16

Step by Step Solution

1. Step 1: Write the proportion equation
   123,109.34 : 169,861.95 = 74,710.16 : x
2. Step 2: Convert to fraction form
   123,109.34/169,861.95 = 74,710.16/x
3. Step 3: Cross multiply
   123,109.34x = 169,861.95 × 74,710.16
4. Step 4: Simplify right side
   123,109.34x = 12,690,413,887.07
5. Step 5: Solve for x
   x = 12,690,413,887.07/123,109.34
6. Step 6: Final answer
   x = 103,082.47