Finding the Fourth Proportional to 28,437.50, 39,238.89 and 16,498.10

Step by Step Solution

1. Step 1: Write the proportion equation
   28,437.50 : 39,238.89 = 16,498.10 : x
2. Step 2: Convert to fraction form
   28,437.50/39,238.89 = 16,498.10/x
3. Step 3: Cross multiply
   28,437.50x = 39,238.89 × 16,498.10
4. Step 4: Simplify right side
   28,437.50x = 647,367,131.11
5. Step 5: Solve for x
   x = 647,367,131.11/28,437.50
6. Step 6: Final answer
   x = 22,764.56