Finding the Fourth Proportional to 62,447.08, 86,131.86 and 39,763.72

Step by Step Solution

1. Step 1: Write the proportion equation
   62,447.08 : 86,131.86 = 39,763.72 : x
2. Step 2: Convert to fraction form
   62,447.08/86,131.86 = 39,763.72/x
3. Step 3: Cross multiply
   62,447.08x = 86,131.86 × 39,763.72
4. Step 4: Simplify right side
   62,447.08x = 3,424,923,164.12
5. Step 5: Solve for x
   x = 3,424,923,164.12/62,447.08
6. Step 6: Final answer
   x = 54,845.21