Finding the Fourth Proportional to 10,557.30, 14,562.72 and 6,972.29

Step by Step Solution

1. Step 1: Write the proportion equation
   10,557.30 : 14,562.72 = 6,972.29 : x
2. Step 2: Convert to fraction form
   10,557.30/14,562.72 = 6,972.29/x
3. Step 3: Cross multiply
   10,557.30x = 14,562.72 × 6,972.29
4. Step 4: Simplify right side
   10,557.30x = 101,535,434.22
5. Step 5: Solve for x
   x = 101,535,434.22/10,557.30
6. Step 6: Final answer
   x = 9,617.56