Finding the Fourth Proportional to 10,964.68, 15,120.50 and 10,054.04

Step by Step Solution

1. Step 1: Write the proportion equation
   10,964.68 : 15,120.50 = 10,054.04 : x
2. Step 2: Convert to fraction form
   10,964.68/15,120.50 = 10,054.04/x
3. Step 3: Cross multiply
   10,964.68x = 15,120.50 × 10,054.04
4. Step 4: Simplify right side
   10,964.68x = 152,022,061.55
5. Step 5: Solve for x
   x = 152,022,061.55/10,964.68
6. Step 6: Final answer
   x = 13,864.71