Finding the Fourth Proportional to 359,601.48, 539,460.72 and 134,979.56

Step by Step Solution

1. Step 1: Write the proportion equation
   359,601.48 : 539,460.72 = 134,979.56 : x
2. Step 2: Convert to fraction form
   359,601.48/539,460.72 = 134,979.56/x
3. Step 3: Cross multiply
   359,601.48x = 539,460.72 × 134,979.56
4. Step 4: Simplify right side
   359,601.48x = 72,816,170,622.88
5. Step 5: Solve for x
   x = 72,816,170,622.88/359,601.48
6. Step 6: Final answer
   x = 202,491.30