Finding the Fourth Proportional to 13,614.24, 18,787.74 and 7,645.98

Step by Step Solution

1. Step 1: Write the proportion equation
   13,614.24 : 18,787.74 = 7,645.98 : x
2. Step 2: Convert to fraction form
   13,614.24/18,787.74 = 7,645.98/x
3. Step 3: Cross multiply
   13,614.24x = 18,787.74 × 7,645.98
4. Step 4: Simplify right side
   13,614.24x = 143,650,684.29
5. Step 5: Solve for x
   x = 143,650,684.29/13,614.24
6. Step 6: Final answer
   x = 10,551.50