Finding the Fourth Proportional to 9,472.17, 13,070.25 and 5,280.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,472.17 : 13,070.25 = 5,280.42 : x
2. Step 2: Convert to fraction form
   9,472.17/13,070.25 = 5,280.42/x
3. Step 3: Cross multiply
   9,472.17x = 13,070.25 × 5,280.42
4. Step 4: Simplify right side
   9,472.17x = 69,016,409.51
5. Step 5: Solve for x
   x = 69,016,409.51/9,472.17
6. Step 6: Final answer
   x = 7,286.23