Finding the Fourth Proportional to 15,400.32, 21,227.76 and 10,914.72

Step by Step Solution

1. Step 1: Write the proportion equation
   15,400.32 : 21,227.76 = 10,914.72 : x
2. Step 2: Convert to fraction form
   15,400.32/21,227.76 = 10,914.72/x
3. Step 3: Cross multiply
   15,400.32x = 21,227.76 × 10,914.72
4. Step 4: Simplify right side
   15,400.32x = 231,695,056.63
5. Step 5: Solve for x
   x = 231,695,056.63/15,400.32
6. Step 6: Final answer
   x = 15,044.82