Finding the Fourth Proportional to 9,472.72, 13,070.62 and 5,493.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,472.72 : 13,070.62 = 5,493.28 : x
2. Step 2: Convert to fraction form
   9,472.72/13,070.62 = 5,493.28/x
3. Step 3: Cross multiply
   9,472.72x = 13,070.62 × 5,493.28
4. Step 4: Simplify right side
   9,472.72x = 71,800,575.43
5. Step 5: Solve for x
   x = 71,800,575.43/9,472.72
6. Step 6: Final answer
   x = 7,579.72