Finding the Fourth Proportional to 56,411.78, 84,451.61 and 41,686.38

Step by Step Solution

1. Step 1: Write the proportion equation
   56,411.78 : 84,451.61 = 41,686.38 : x
2. Step 2: Convert to fraction form
   56,411.78/84,451.61 = 41,686.38/x
3. Step 3: Cross multiply
   56,411.78x = 84,451.61 × 41,686.38
4. Step 4: Simplify right side
   56,411.78x = 3,520,482,010.29
5. Step 5: Solve for x
   x = 3,520,482,010.29/56,411.78
6. Step 6: Final answer
   x = 62,406.86