Finding the Fourth Proportional to 105,126.24, 145,093.01 and 62,687.50

Step by Step Solution

1. Step 1: Write the proportion equation
   105,126.24 : 145,093.01 = 62,687.50 : x
2. Step 2: Convert to fraction form
   105,126.24/145,093.01 = 62,687.50/x
3. Step 3: Cross multiply
   105,126.24x = 145,093.01 × 62,687.50
4. Step 4: Simplify right side
   105,126.24x = 9,095,518,064.38
5. Step 5: Solve for x
   x = 9,095,518,064.38/105,126.24
6. Step 6: Final answer
   x = 86,519.96