Finding the Fourth Proportional to 56,567.81, 78,061.43 and 31,418.93

Step by Step Solution

1. Step 1: Write the proportion equation
   56,567.81 : 78,061.43 = 31,418.93 : x
2. Step 2: Convert to fraction form
   56,567.81/78,061.43 = 31,418.93/x
3. Step 3: Cross multiply
   56,567.81x = 78,061.43 × 31,418.93
4. Step 4: Simplify right side
   56,567.81x = 2,452,606,057.47
5. Step 5: Solve for x
   x = 2,452,606,057.47/56,567.81
6. Step 6: Final answer
   x = 43,356.92