Finding the Fourth Proportional to 9,293.61, 12,835.83 and 6,121.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,293.61 : 12,835.83 = 6,121.10 : x
2. Step 2: Convert to fraction form
   9,293.61/12,835.83 = 6,121.10/x
3. Step 3: Cross multiply
   9,293.61x = 12,835.83 × 6,121.10
4. Step 4: Simplify right side
   9,293.61x = 78,569,334.83
5. Step 5: Solve for x
   x = 78,569,334.83/9,293.61
6. Step 6: Final answer
   x = 8,454.12