Finding the Fourth Proportional to 9,406.62, 12,981.56 and 5,373.80

Step by Step Solution

1. Step 1: Write the proportion equation
   9,406.62 : 12,981.56 = 5,373.80 : x
2. Step 2: Convert to fraction form
   9,406.62/12,981.56 = 5,373.80/x
3. Step 3: Cross multiply
   9,406.62x = 12,981.56 × 5,373.80
4. Step 4: Simplify right side
   9,406.62x = 69,760,307.13
5. Step 5: Solve for x
   x = 69,760,307.13/9,406.62
6. Step 6: Final answer
   x = 7,416.09