Finding the Fourth Proportional to 9,969.30, 14,921.55 and 7,053.30

Step by Step Solution

1. Step 1: Write the proportion equation
   9,969.30 : 14,921.55 = 7,053.30 : x
2. Step 2: Convert to fraction form
   9,969.30/14,921.55 = 7,053.30/x
3. Step 3: Cross multiply
   9,969.30x = 14,921.55 × 7,053.30
4. Step 4: Simplify right side
   9,969.30x = 105,246,168.62
5. Step 5: Solve for x
   x = 105,246,168.62/9,969.30
6. Step 6: Final answer
   x = 10,557.03