Finding the Fourth Proportional to 9,048.77, 12,488.62 and 5,070.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,048.77 : 12,488.62 = 5,070.15 : x
2. Step 2: Convert to fraction form
   9,048.77/12,488.62 = 5,070.15/x
3. Step 3: Cross multiply
   9,048.77x = 12,488.62 × 5,070.15
4. Step 4: Simplify right side
   9,048.77x = 63,319,176.69
5. Step 5: Solve for x
   x = 63,319,176.69/9,048.77
6. Step 6: Final answer
   x = 6,997.55