Finding the Fourth Proportional to 57,059.33, 78,740.46 and 31,567.12

Step by Step Solution

1. Step 1: Write the proportion equation
   57,059.33 : 78,740.46 = 31,567.12 : x
2. Step 2: Convert to fraction form
   57,059.33/78,740.46 = 31,567.12/x
3. Step 3: Cross multiply
   57,059.33x = 78,740.46 × 31,567.12
4. Step 4: Simplify right side
   57,059.33x = 2,485,609,352.82
5. Step 5: Solve for x
   x = 2,485,609,352.82/57,059.33
6. Step 6: Final answer
   x = 43,561.84