Finding the Fourth Proportional to 10,089.28, 15,055.76 and 10,012.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,089.28 : 15,055.76 = 10,012.48 : x
2. Step 2: Convert to fraction form
   10,089.28/15,055.76 = 10,012.48/x
3. Step 3: Cross multiply
   10,089.28x = 15,055.76 × 10,012.48
4. Step 4: Simplify right side
   10,089.28x = 150,745,495.88
5. Step 5: Solve for x
   x = 150,745,495.88/10,089.28
6. Step 6: Final answer
   x = 14,941.15