Finding the Fourth Proportional to 108,123.49, 149,209.82 and 59,728.74

Step by Step Solution

1. Step 1: Write the proportion equation
   108,123.49 : 149,209.82 = 59,728.74 : x
2. Step 2: Convert to fraction form
   108,123.49/149,209.82 = 59,728.74/x
3. Step 3: Cross multiply
   108,123.49x = 149,209.82 × 59,728.74
4. Step 4: Simplify right side
   108,123.49x = 8,912,115,085.31
5. Step 5: Solve for x
   x = 8,912,115,085.31/108,123.49
6. Step 6: Final answer
   x = 82,425.33