Finding the Fourth Proportional to 10,574.72, 15,877.62 and 10,388.08

Step by Step Solution

1. Step 1: Write the proportion equation
   10,574.72 : 15,877.62 = 10,388.08 : x
2. Step 2: Convert to fraction form
   10,574.72/15,877.62 = 10,388.08/x
3. Step 3: Cross multiply
   10,574.72x = 15,877.62 × 10,388.08
4. Step 4: Simplify right side
   10,574.72x = 164,937,986.77
5. Step 5: Solve for x
   x = 164,937,986.77/10,574.72
6. Step 6: Final answer
   x = 15,597.39