Finding the Fourth Proportional to 13,592.01, 18,757.61 and 8,490.55

Step by Step Solution

1. Step 1: Write the proportion equation
   13,592.01 : 18,757.61 = 8,490.55 : x
2. Step 2: Convert to fraction form
   13,592.01/18,757.61 = 8,490.55/x
3. Step 3: Cross multiply
   13,592.01x = 18,757.61 × 8,490.55
4. Step 4: Simplify right side
   13,592.01x = 159,262,425.59
5. Step 5: Solve for x
   x = 159,262,425.59/13,592.01
6. Step 6: Final answer
   x = 11,717.36