Finding the Fourth Proportional to 13,521.06, 18,658.88 and 7,552.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,521.06 : 18,658.88 = 7,552.82 : x
2. Step 2: Convert to fraction form
   13,521.06/18,658.88 = 7,552.82/x
3. Step 3: Cross multiply
   13,521.06x = 18,658.88 × 7,552.82
4. Step 4: Simplify right side
   13,521.06x = 140,927,162.04
5. Step 5: Solve for x
   x = 140,927,162.04/13,521.06
6. Step 6: Final answer
   x = 10,422.79