Finding the Fourth Proportional to 13,386.83, 18,472.33 and 7,417.02

Step by Step Solution

1. Step 1: Write the proportion equation
   13,386.83 : 18,472.33 = 7,417.02 : x
2. Step 2: Convert to fraction form
   13,386.83/18,472.33 = 7,417.02/x
3. Step 3: Cross multiply
   13,386.83x = 18,472.33 × 7,417.02
4. Step 4: Simplify right side
   13,386.83x = 137,009,641.06
5. Step 5: Solve for x
   x = 137,009,641.06/13,386.83
6. Step 6: Final answer
   x = 10,234.66