Finding the Fourth Proportional to 105,429.60, 145,474.38 and 62,444.52

Step by Step Solution

1. Step 1: Write the proportion equation
   105,429.60 : 145,474.38 = 62,444.52 : x
2. Step 2: Convert to fraction form
   105,429.60/145,474.38 = 62,444.52/x
3. Step 3: Cross multiply
   105,429.60x = 145,474.38 × 62,444.52
4. Step 4: Simplify right side
   105,429.60x = 9,084,077,831.40
5. Step 5: Solve for x
   x = 9,084,077,831.40/105,429.60
6. Step 6: Final answer
   x = 86,162.50