Finding the Fourth Proportional to 14,002.64, 19,323.78 and 7,715.16

Step by Step Solution

1. Step 1: Write the proportion equation
   14,002.64 : 19,323.78 = 7,715.16 : x
2. Step 2: Convert to fraction form
   14,002.64/19,323.78 = 7,715.16/x
3. Step 3: Cross multiply
   14,002.64x = 19,323.78 × 7,715.16
4. Step 4: Simplify right side
   14,002.64x = 149,086,054.50
5. Step 5: Solve for x
   x = 149,086,054.50/14,002.64
6. Step 6: Final answer
   x = 10,647.00