Finding the Fourth Proportional to 62,640.86, 86,448.39 and 41,382.86

Step by Step Solution

1. Step 1: Write the proportion equation
   62,640.86 : 86,448.39 = 41,382.86 : x
2. Step 2: Convert to fraction form
   62,640.86/86,448.39 = 41,382.86/x
3. Step 3: Cross multiply
   62,640.86x = 86,448.39 × 41,382.86
4. Step 4: Simplify right side
   62,640.86x = 3,577,481,620.60
5. Step 5: Solve for x
   x = 3,577,481,620.60/62,640.86
6. Step 6: Final answer
   x = 57,110.99