Finding the Fourth Proportional to 9,108.76, 12,572.06 and 5,383.32

Step by Step Solution

1. Step 1: Write the proportion equation
   9,108.76 : 12,572.06 = 5,383.32 : x
2. Step 2: Convert to fraction form
   9,108.76/12,572.06 = 5,383.32/x
3. Step 3: Cross multiply
   9,108.76x = 12,572.06 × 5,383.32
4. Step 4: Simplify right side
   9,108.76x = 67,679,422.04
5. Step 5: Solve for x
   x = 67,679,422.04/9,108.76
6. Step 6: Final answer
   x = 7,430.15