Finding the Fourth Proportional to 105,789.17, 145,950.73 and 69,510.13

Step by Step Solution

1. Step 1: Write the proportion equation
   105,789.17 : 145,950.73 = 69,510.13 : x
2. Step 2: Convert to fraction form
   105,789.17/145,950.73 = 69,510.13/x
3. Step 3: Cross multiply
   105,789.17x = 145,950.73 × 69,510.13
4. Step 4: Simplify right side
   105,789.17x = 10,145,053,677.24
5. Step 5: Solve for x
   x = 10,145,053,677.24/105,789.17
6. Step 6: Final answer
   x = 95,898.79