Finding the Fourth Proportional to 9,439.86, 13,025.99 and 5,460.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,439.86 : 13,025.99 = 5,460.20 : x
2. Step 2: Convert to fraction form
   9,439.86/13,025.99 = 5,460.20/x
3. Step 3: Cross multiply
   9,439.86x = 13,025.99 × 5,460.20
4. Step 4: Simplify right side
   9,439.86x = 71,124,510.60
5. Step 5: Solve for x
   x = 71,124,510.60/9,439.86
6. Step 6: Final answer
   x = 7,534.49