Finding the Fourth Proportional to 63,061.41, 86,975.51 and 40,402.50

Step by Step Solution

1. Step 1: Write the proportion equation
   63,061.41 : 86,975.51 = 40,402.50 : x
2. Step 2: Convert to fraction form
   63,061.41/86,975.51 = 40,402.50/x
3. Step 3: Cross multiply
   63,061.41x = 86,975.51 × 40,402.50
4. Step 4: Simplify right side
   63,061.41x = 3,514,027,840.76
5. Step 5: Solve for x
   x = 3,514,027,840.76/63,061.41
6. Step 6: Final answer
   x = 55,723.90