Finding the Fourth Proportional to 31,342.31, 43,222.98 and 24,990.02

Step by Step Solution

1. Step 1: Write the proportion equation
   31,342.31 : 43,222.98 = 24,990.02 : x
2. Step 2: Convert to fraction form
   31,342.31/43,222.98 = 24,990.02/x
3. Step 3: Cross multiply
   31,342.31x = 43,222.98 × 24,990.02
4. Step 4: Simplify right side
   31,342.31x = 1,080,143,174.34
5. Step 5: Solve for x
   x = 1,080,143,174.34/31,342.31
6. Step 6: Final answer
   x = 34,462.78