Finding the Fourth Proportional to 10,923.30, 16,404.15 and 10,577.70

Step by Step Solution

1. Step 1: Write the proportion equation
   10,923.30 : 16,404.15 = 10,577.70 : x
2. Step 2: Convert to fraction form
   10,923.30/16,404.15 = 10,577.70/x
3. Step 3: Cross multiply
   10,923.30x = 16,404.15 × 10,577.70
4. Step 4: Simplify right side
   10,923.30x = 173,518,177.46
5. Step 5: Solve for x
   x = 173,518,177.46/10,923.30
6. Step 6: Final answer
   x = 15,885.14