Finding the Fourth Proportional to 9,039.18, 13,557.42 and 3,117

Step by Step Solution

1. Step 1: Write the proportion equation
   9,039.18 : 13,557.42 = 3,117 : x
2. Step 2: Convert to fraction form
   9,039.18/13,557.42 = 3,117/x
3. Step 3: Cross multiply
   9,039.18x = 13,557.42 × 3,117
4. Step 4: Simplify right side
   9,039.18x = 42,258,478.14
5. Step 5: Solve for x
   x = 42,258,478.14/9,039.18
6. Step 6: Final answer
   x = 4,675.03