Finding the Fourth Proportional to 57,031.22, 78,699.87 and 31,536.06

Step by Step Solution

1. Step 1: Write the proportion equation
   57,031.22 : 78,699.87 = 31,536.06 : x
2. Step 2: Convert to fraction form
   57,031.22/78,699.87 = 31,536.06/x
3. Step 3: Cross multiply
   57,031.22x = 78,699.87 × 31,536.06
4. Step 4: Simplify right side
   57,031.22x = 2,481,883,822.31
5. Step 5: Solve for x
   x = 2,481,883,822.31/57,031.22
6. Step 6: Final answer
   x = 43,517.99