Finding the Fourth Proportional to 9,250.34, 12,765.57 and 5,058.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,250.34 : 12,765.57 = 5,058.50 : x
2. Step 2: Convert to fraction form
   9,250.34/12,765.57 = 5,058.50/x
3. Step 3: Cross multiply
   9,250.34x = 12,765.57 × 5,058.50
4. Step 4: Simplify right side
   9,250.34x = 64,574,635.85
5. Step 5: Solve for x
   x = 64,574,635.85/9,250.34
6. Step 6: Final answer
   x = 6,980.79