Finding the Fourth Proportional to 10,553.28, 15,835.34 and 4,713.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,553.28 : 15,835.34 = 4,713.72 : x
2. Step 2: Convert to fraction form
   10,553.28/15,835.34 = 4,713.72/x
3. Step 3: Cross multiply
   10,553.28x = 15,835.34 × 4,713.72
4. Step 4: Simplify right side
   10,553.28x = 74,643,358.86
5. Step 5: Solve for x
   x = 74,643,358.86/10,553.28
6. Step 6: Final answer
   x = 7,073.00