Finding the Fourth Proportional to 13,385.82, 18,472.22 and 7,417.47

Step by Step Solution

1. Step 1: Write the proportion equation
   13,385.82 : 18,472.22 = 7,417.47 : x
2. Step 2: Convert to fraction form
   13,385.82/18,472.22 = 7,417.47/x
3. Step 3: Cross multiply
   13,385.82x = 18,472.22 × 7,417.47
4. Step 4: Simplify right side
   13,385.82x = 137,017,100.60
5. Step 5: Solve for x
   x = 137,017,100.60/13,385.82
6. Step 6: Final answer
   x = 10,235.99