Finding the Fourth Proportional to 9,250.53, 12,766.05 and 5,058.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,250.53 : 12,766.05 = 5,058.78 : x
2. Step 2: Convert to fraction form
   9,250.53/12,766.05 = 5,058.78/x
3. Step 3: Cross multiply
   9,250.53x = 12,766.05 × 5,058.78
4. Step 4: Simplify right side
   9,250.53x = 64,580,638.42
5. Step 5: Solve for x
   x = 64,580,638.42/9,250.53
6. Step 6: Final answer
   x = 6,981.29