Finding the Fourth Proportional to 9,280.72, 12,805.64 and 5,301.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,280.72 : 12,805.64 = 5,301.84 : x
2. Step 2: Convert to fraction form
   9,280.72/12,805.64 = 5,301.84/x
3. Step 3: Cross multiply
   9,280.72x = 12,805.64 × 5,301.84
4. Step 4: Simplify right side
   9,280.72x = 67,893,454.38
5. Step 5: Solve for x
   x = 67,893,454.38/9,280.72
6. Step 6: Final answer
   x = 7,315.54