Finding the Fourth Proportional to 7,926.88, 10,937.20 and 5,131.84

Step by Step Solution

1. Step 1: Write the proportion equation
   7,926.88 : 10,937.20 = 5,131.84 : x
2. Step 2: Convert to fraction form
   7,926.88/10,937.20 = 5,131.84/x
3. Step 3: Cross multiply
   7,926.88x = 10,937.20 × 5,131.84
4. Step 4: Simplify right side
   7,926.88x = 56,127,960.45
5. Step 5: Solve for x
   x = 56,127,960.45/7,926.88
6. Step 6: Final answer
   x = 7,080.71