Finding the Fourth Proportional to 57,002.72, 78,663.56 and 31,852.22

Step by Step Solution

1. Step 1: Write the proportion equation
   57,002.72 : 78,663.56 = 31,852.22 : x
2. Step 2: Convert to fraction form
   57,002.72/78,663.56 = 31,852.22/x
3. Step 3: Cross multiply
   57,002.72x = 78,663.56 × 31,852.22
4. Step 4: Simplify right side
   57,002.72x = 2,505,609,019.10
5. Step 5: Solve for x
   x = 2,505,609,019.10/57,002.72
6. Step 6: Final answer
   x = 43,955.96