Finding the Fourth Proportional to 13,405.52, 18,498.99 and 7,437.08

Step by Step Solution

1. Step 1: Write the proportion equation
   13,405.52 : 18,498.99 = 7,437.08 : x
2. Step 2: Convert to fraction form
   13,405.52/18,498.99 = 7,437.08/x
3. Step 3: Cross multiply
   13,405.52x = 18,498.99 × 7,437.08
4. Step 4: Simplify right side
   13,405.52x = 137,578,468.55
5. Step 5: Solve for x
   x = 137,578,468.55/13,405.52
6. Step 6: Final answer
   x = 10,262.82