Finding the Fourth Proportional to 9,049.60, 12,488.61 and 5,070.70

Step by Step Solution

1. Step 1: Write the proportion equation
   9,049.60 : 12,488.61 = 5,070.70 : x
2. Step 2: Convert to fraction form
   9,049.60/12,488.61 = 5,070.70/x
3. Step 3: Cross multiply
   9,049.60x = 12,488.61 × 5,070.70
4. Step 4: Simplify right side
   9,049.60x = 63,325,994.73
5. Step 5: Solve for x
   x = 63,325,994.73/9,049.60
6. Step 6: Final answer
   x = 6,997.66