Finding the Fourth Proportional to 13,436.76, 18,542.61 and 7,468.59

Step by Step Solution

1. Step 1: Write the proportion equation
   13,436.76 : 18,542.61 = 7,468.59 : x
2. Step 2: Convert to fraction form
   13,436.76/18,542.61 = 7,468.59/x
3. Step 3: Cross multiply
   13,436.76x = 18,542.61 × 7,468.59
4. Step 4: Simplify right side
   13,436.76x = 138,487,151.62
5. Step 5: Solve for x
   x = 138,487,151.62/13,436.76
6. Step 6: Final answer
   x = 10,306.59