Finding the Fourth Proportional to 13,406.00, 18,499.39 and 7,437.47

Step by Step Solution

1. Step 1: Write the proportion equation
   13,406.00 : 18,499.39 = 7,437.47 : x
2. Step 2: Convert to fraction form
   13,406.00/18,499.39 = 7,437.47/x
3. Step 3: Cross multiply
   13,406.00x = 18,499.39 × 7,437.47
4. Step 4: Simplify right side
   13,406.00x = 137,588,547.05
5. Step 5: Solve for x
   x = 137,588,547.05/13,406.00
6. Step 6: Final answer
   x = 10,263.21