Finding the Fourth Proportional to 9,050.15, 12,488.36 and 5,070.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,050.15 : 12,488.36 = 5,070.42 : x
2. Step 2: Convert to fraction form
   9,050.15/12,488.36 = 5,070.42/x
3. Step 3: Cross multiply
   9,050.15x = 12,488.36 × 5,070.42
4. Step 4: Simplify right side
   9,050.15x = 63,321,204.96
5. Step 5: Solve for x
   x = 63,321,204.96/9,050.15
6. Step 6: Final answer
   x = 6,996.71