Finding the Fourth Proportional to 14,088.76, 19,442.52 and 7,715.77

Step by Step Solution

1. Step 1: Write the proportion equation
   14,088.76 : 19,442.52 = 7,715.77 : x
2. Step 2: Convert to fraction form
   14,088.76/19,442.52 = 7,715.77/x
3. Step 3: Cross multiply
   14,088.76x = 19,442.52 × 7,715.77
4. Step 4: Simplify right side
   14,088.76x = 150,014,031.83
5. Step 5: Solve for x
   x = 150,014,031.83/14,088.76
6. Step 6: Final answer
   x = 10,647.78