Finding the Fourth Proportional to 9,472.32, 13,071.89 and 5,223.55

Step by Step Solution

1. Step 1: Write the proportion equation
   9,472.32 : 13,071.89 = 5,223.55 : x
2. Step 2: Convert to fraction form
   9,472.32/13,071.89 = 5,223.55/x
3. Step 3: Cross multiply
   9,472.32x = 13,071.89 × 5,223.55
4. Step 4: Simplify right side
   9,472.32x = 68,281,671.01
5. Step 5: Solve for x
   x = 68,281,671.01/9,472.32
6. Step 6: Final answer
   x = 7,208.55