Finding the Fourth Proportional to 9,050.84, 12,489.31 and 5,071.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,050.84 : 12,489.31 = 5,071.10 : x
2. Step 2: Convert to fraction form
   9,050.84/12,489.31 = 5,071.10/x
3. Step 3: Cross multiply
   9,050.84x = 12,489.31 × 5,071.10
4. Step 4: Simplify right side
   9,050.84x = 63,334,514.59
5. Step 5: Solve for x
   x = 63,334,514.59/9,050.84
6. Step 6: Final answer
   x = 6,997.64