Finding the Fourth Proportional to 7,156.14, 10,740.82 and 5,156.91

Step by Step Solution

1. Step 1: Write the proportion equation
   7,156.14 : 10,740.82 = 5,156.91 : x
2. Step 2: Convert to fraction form
   7,156.14/10,740.82 = 5,156.91/x
3. Step 3: Cross multiply
   7,156.14x = 10,740.82 × 5,156.91
4. Step 4: Simplify right side
   7,156.14x = 55,389,429.17
5. Step 5: Solve for x
   x = 55,389,429.17/7,156.14
6. Step 6: Final answer
   x = 7,740.13