Finding the Fourth Proportional to 10,749.06, 16,128.18 and 5,812.92

Step by Step Solution

1. Step 1: Write the proportion equation
   10,749.06 : 16,128.18 = 5,812.92 : x
2. Step 2: Convert to fraction form
   10,749.06/16,128.18 = 5,812.92/x
3. Step 3: Cross multiply
   10,749.06x = 16,128.18 × 5,812.92
4. Step 4: Simplify right side
   10,749.06x = 93,751,820.09
5. Step 5: Solve for x
   x = 93,751,820.09/10,749.06
6. Step 6: Final answer
   x = 8,721.86