Finding the Fourth Proportional to 9,264.46, 12,784.81 and 5,285.63

Step by Step Solution

1. Step 1: Write the proportion equation
   9,264.46 : 12,784.81 = 5,285.63 : x
2. Step 2: Convert to fraction form
   9,264.46/12,784.81 = 5,285.63/x
3. Step 3: Cross multiply
   9,264.46x = 12,784.81 × 5,285.63
4. Step 4: Simplify right side
   9,264.46x = 67,575,775.28
5. Step 5: Solve for x
   x = 67,575,775.28/9,264.46
6. Step 6: Final answer
   x = 7,294.09