Finding the Fourth Proportional to 9,320.16, 13,981.86 and 5,423.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,320.16 : 13,981.86 = 5,423.52 : x
2. Step 2: Convert to fraction form
   9,320.16/13,981.86 = 5,423.52/x
3. Step 3: Cross multiply
   9,320.16x = 13,981.86 × 5,423.52
4. Step 4: Simplify right side
   9,320.16x = 75,830,897.35
5. Step 5: Solve for x
   x = 75,830,897.35/9,320.16
6. Step 6: Final answer
   x = 8,136.22