Finding the Fourth Proportional to 115,969.24, 160,086.54 and 78,294.52

Step by Step Solution

1. Step 1: Write the proportion equation
   115,969.24 : 160,086.54 = 78,294.52 : x
2. Step 2: Convert to fraction form
   115,969.24/160,086.54 = 78,294.52/x
3. Step 3: Cross multiply
   115,969.24x = 160,086.54 × 78,294.52
4. Step 4: Simplify right side
   115,969.24x = 12,533,898,807.76
5. Step 5: Solve for x
   x = 12,533,898,807.76/115,969.24
6. Step 6: Final answer
   x = 108,079.51