Finding the Fourth Proportional to 9,050.85, 12,490.52 and 5,276.45

Step by Step Solution

1. Step 1: Write the proportion equation
   9,050.85 : 12,490.52 = 5,276.45 : x
2. Step 2: Convert to fraction form
   9,050.85/12,490.52 = 5,276.45/x
3. Step 3: Cross multiply
   9,050.85x = 12,490.52 × 5,276.45
4. Step 4: Simplify right side
   9,050.85x = 65,905,515.42
5. Step 5: Solve for x
   x = 65,905,515.42/9,050.85
6. Step 6: Final answer
   x = 7,281.70