Finding the Fourth Proportional to 9,049.59, 12,488.76 and 5,070.57

Step by Step Solution

1. Step 1: Write the proportion equation
   9,049.59 : 12,488.76 = 5,070.57 : x
2. Step 2: Convert to fraction form
   9,049.59/12,488.76 = 5,070.57/x
3. Step 3: Cross multiply
   9,049.59x = 12,488.76 × 5,070.57
4. Step 4: Simplify right side
   9,049.59x = 63,325,131.79
5. Step 5: Solve for x
   x = 63,325,131.79/9,049.59
6. Step 6: Final answer
   x = 6,997.57