Finding the Fourth Proportional to 115,739.52, 173,429.72 and 80,270.04

Step by Step Solution

1. Step 1: Write the proportion equation
   115,739.52 : 173,429.72 = 80,270.04 : x
2. Step 2: Convert to fraction form
   115,739.52/173,429.72 = 80,270.04/x
3. Step 3: Cross multiply
   115,739.52x = 173,429.72 × 80,270.04
4. Step 4: Simplify right side
   115,739.52x = 13,921,210,561.59
5. Step 5: Solve for x
   x = 13,921,210,561.59/115,739.52
6. Step 6: Final answer
   x = 120,280.53