Finding the Fourth Proportional to 13,385.93, 18,472.73 and 7,417.71

Step by Step Solution

1. Step 1: Write the proportion equation
   13,385.93 : 18,472.73 = 7,417.71 : x
2. Step 2: Convert to fraction form
   13,385.93/18,472.73 = 7,417.71/x
3. Step 3: Cross multiply
   13,385.93x = 18,472.73 × 7,417.71
4. Step 4: Simplify right side
   13,385.93x = 137,025,316.96
5. Step 5: Solve for x
   x = 137,025,316.96/13,385.93
6. Step 6: Final answer
   x = 10,236.52