Finding the Fourth Proportional to 11,038.61, 16,557.50 and 3,642.85

Step by Step Solution

1. Step 1: Write the proportion equation
   11,038.61 : 16,557.50 = 3,642.85 : x
2. Step 2: Convert to fraction form
   11,038.61/16,557.50 = 3,642.85/x
3. Step 3: Cross multiply
   11,038.61x = 16,557.50 × 3,642.85
4. Step 4: Simplify right side
   11,038.61x = 60,316,470.66
5. Step 5: Solve for x
   x = 60,316,470.66/11,038.61
6. Step 6: Final answer
   x = 5,464.14