Finding the Fourth Proportional to 9,050.80, 12,490.34 and 5,071.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,050.80 : 12,490.34 = 5,071.82 : x
2. Step 2: Convert to fraction form
   9,050.80/12,490.34 = 5,071.82/x
3. Step 3: Cross multiply
   9,050.80x = 12,490.34 × 5,071.82
4. Step 4: Simplify right side
   9,050.80x = 63,348,756.22
5. Step 5: Solve for x
   x = 63,348,756.22/9,050.80
6. Step 6: Final answer
   x = 6,999.24