Finding the Fourth Proportional to 10,117.82, 15,178.56 and 4,573.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,117.82 : 15,178.56 = 4,573.78 : x
2. Step 2: Convert to fraction form
   10,117.82/15,178.56 = 4,573.78/x
3. Step 3: Cross multiply
   10,117.82x = 15,178.56 × 4,573.78
4. Step 4: Simplify right side
   10,117.82x = 69,423,356.21
5. Step 5: Solve for x
   x = 69,423,356.21/10,117.82
6. Step 6: Final answer
   x = 6,861.49