Finding the Fourth Proportional to 8,749.72, 12,073.98 and 5,214.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,749.72 : 12,073.98 = 5,214.16 : x
2. Step 2: Convert to fraction form
   8,749.72/12,073.98 = 5,214.16/x
3. Step 3: Cross multiply
   8,749.72x = 12,073.98 × 5,214.16
4. Step 4: Simplify right side
   8,749.72x = 62,955,663.56
5. Step 5: Solve for x
   x = 62,955,663.56/8,749.72
6. Step 6: Final answer
   x = 7,195.16