Finding the Fourth Proportional to 10,154.72, 14,009.27 and 7,912.71

Step by Step Solution

1. Step 1: Write the proportion equation
   10,154.72 : 14,009.27 = 7,912.71 : x
2. Step 2: Convert to fraction form
   10,154.72/14,009.27 = 7,912.71/x
3. Step 3: Cross multiply
   10,154.72x = 14,009.27 × 7,912.71
4. Step 4: Simplify right side
   10,154.72x = 110,851,290.82
5. Step 5: Solve for x
   x = 110,851,290.82/10,154.72
6. Step 6: Final answer
   x = 10,916.23