Finding the Fourth Proportional to 62,791.86, 86,665.50 and 38,581.80

Step by Step Solution

1. Step 1: Write the proportion equation
   62,791.86 : 86,665.50 = 38,581.80 : x
2. Step 2: Convert to fraction form
   62,791.86/86,665.50 = 38,581.80/x
3. Step 3: Cross multiply
   62,791.86x = 86,665.50 × 38,581.80
4. Step 4: Simplify right side
   62,791.86x = 3,343,710,987.90
5. Step 5: Solve for x
   x = 3,343,710,987.90/62,791.86
6. Step 6: Final answer
   x = 53,250.71