Finding the Fourth Proportional to 7,991.27, 11,026.04 and 5,158.05

Step by Step Solution

1. Step 1: Write the proportion equation
   7,991.27 : 11,026.04 = 5,158.05 : x
2. Step 2: Convert to fraction form
   7,991.27/11,026.04 = 5,158.05/x
3. Step 3: Cross multiply
   7,991.27x = 11,026.04 × 5,158.05
4. Step 4: Simplify right side
   7,991.27x = 56,872,784.70
5. Step 5: Solve for x
   x = 56,872,784.70/7,991.27
6. Step 6: Final answer
   x = 7,116.86