Finding the Fourth Proportional to 103,698.52, 143,148.10 and 69,726.72

Step by Step Solution

1. Step 1: Write the proportion equation
   103,698.52 : 143,148.10 = 69,726.72 : x
2. Step 2: Convert to fraction form
   103,698.52/143,148.10 = 69,726.72/x
3. Step 3: Cross multiply
   103,698.52x = 143,148.10 × 69,726.72
4. Step 4: Simplify right side
   103,698.52x = 9,981,247,487.23
5. Step 5: Solve for x
   x = 9,981,247,487.23/103,698.52
6. Step 6: Final answer
   x = 96,252.55