Finding the Fourth Proportional to 31,234.55, 43,103.74 and 18,498.01

Step by Step Solution

1. Step 1: Write the proportion equation
   31,234.55 : 43,103.74 = 18,498.01 : x
2. Step 2: Convert to fraction form
   31,234.55/43,103.74 = 18,498.01/x
3. Step 3: Cross multiply
   31,234.55x = 43,103.74 × 18,498.01
4. Step 4: Simplify right side
   31,234.55x = 797,333,321.07
5. Step 5: Solve for x
   x = 797,333,321.07/31,234.55
6. Step 6: Final answer
   x = 25,527.28