Finding the Fourth Proportional to 14,002.81, 19,323.86 and 7,715.18

Step by Step Solution

1. Step 1: Write the proportion equation
   14,002.81 : 19,323.86 = 7,715.18 : x
2. Step 2: Convert to fraction form
   14,002.81/19,323.86 = 7,715.18/x
3. Step 3: Cross multiply
   14,002.81x = 19,323.86 × 7,715.18
4. Step 4: Simplify right side
   14,002.81x = 149,087,058.19
5. Step 5: Solve for x
   x = 149,087,058.19/14,002.81
6. Step 6: Final answer
   x = 10,646.94