Finding the Fourth Proportional to 9,294.77, 12,826.32 and 5,518.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,294.77 : 12,826.32 = 5,518.10 : x
2. Step 2: Convert to fraction form
   9,294.77/12,826.32 = 5,518.10/x
3. Step 3: Cross multiply
   9,294.77x = 12,826.32 × 5,518.10
4. Step 4: Simplify right side
   9,294.77x = 70,776,916.39
5. Step 5: Solve for x
   x = 70,776,916.39/9,294.77
6. Step 6: Final answer
   x = 7,614.70