Finding the Fourth Proportional to 5,080.86, 7,012.71 and 3,091.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,080.86 : 7,012.71 = 3,091.50 : x
2. Step 2: Convert to fraction form
   5,080.86/7,012.71 = 3,091.50/x
3. Step 3: Cross multiply
   5,080.86x = 7,012.71 × 3,091.50
4. Step 4: Simplify right side
   5,080.86x = 21,679,792.97
5. Step 5: Solve for x
   x = 21,679,792.97/5,080.86
6. Step 6: Final answer
   x = 4,266.95