Finding the Fourth Proportional to 9,081.51, 12,531.09 and 5,101.86

Step by Step Solution

1. Step 1: Write the proportion equation
   9,081.51 : 12,531.09 = 5,101.86 : x
2. Step 2: Convert to fraction form
   9,081.51/12,531.09 = 5,101.86/x
3. Step 3: Cross multiply
   9,081.51x = 12,531.09 × 5,101.86
4. Step 4: Simplify right side
   9,081.51x = 63,931,866.83
5. Step 5: Solve for x
   x = 63,931,866.83/9,081.51
6. Step 6: Final answer
   x = 7,039.78