Finding the Fourth Proportional to 52,715.34, 79,073.07 and 13,272.15

Step by Step Solution

1. Step 1: Write the proportion equation
   52,715.34 : 79,073.07 = 13,272.15 : x
2. Step 2: Convert to fraction form
   52,715.34/79,073.07 = 13,272.15/x
3. Step 3: Cross multiply
   52,715.34x = 79,073.07 × 13,272.15
4. Step 4: Simplify right side
   52,715.34x = 1,049,469,646.00
5. Step 5: Solve for x
   x = 1,049,469,646.00/52,715.34
6. Step 6: Final answer
   x = 19,908.24