Finding the Fourth Proportional to 8,723.31, 12,036.74 and 5,141.29

Step by Step Solution

1. Step 1: Write the proportion equation
   8,723.31 : 12,036.74 = 5,141.29 : x
2. Step 2: Convert to fraction form
   8,723.31/12,036.74 = 5,141.29/x
3. Step 3: Cross multiply
   8,723.31x = 12,036.74 × 5,141.29
4. Step 4: Simplify right side
   8,723.31x = 61,884,352.12
5. Step 5: Solve for x
   x = 61,884,352.12/8,723.31
6. Step 6: Final answer
   x = 7,094.14