Finding the Fourth Proportional to 359,601.49, 539,261.89 and 134,839.31

Step by Step Solution

1. Step 1: Write the proportion equation
   359,601.49 : 539,261.89 = 134,839.31 : x
2. Step 2: Convert to fraction form
   359,601.49/539,261.89 = 134,839.31/x
3. Step 3: Cross multiply
   359,601.49x = 539,261.89 × 134,839.31
4. Step 4: Simplify right side
   359,601.49x = 72,713,701,156.90
5. Step 5: Solve for x
   x = 72,713,701,156.90/359,601.49
6. Step 6: Final answer
   x = 202,206.34