Finding the Fourth Proportional to 105,417.17, 145,535.82 and 69,710.75

Step by Step Solution

1. Step 1: Write the proportion equation
   105,417.17 : 145,535.82 = 69,710.75 : x
2. Step 2: Convert to fraction form
   105,417.17/145,535.82 = 69,710.75/x
3. Step 3: Cross multiply
   105,417.17x = 145,535.82 × 69,710.75
4. Step 4: Simplify right side
   105,417.17x = 10,145,411,164.07
5. Step 5: Solve for x
   x = 10,145,411,164.07/105,417.17
6. Step 6: Final answer
   x = 96,240.60