Finding the Fourth Proportional to 10,553.78, 15,830.82 and 2,762.59

Step by Step Solution

1. Step 1: Write the proportion equation
   10,553.78 : 15,830.82 = 2,762.59 : x
2. Step 2: Convert to fraction form
   10,553.78/15,830.82 = 2,762.59/x
3. Step 3: Cross multiply
   10,553.78x = 15,830.82 × 2,762.59
4. Step 4: Simplify right side
   10,553.78x = 43,734,065.02
5. Step 5: Solve for x
   x = 43,734,065.02/10,553.78
6. Step 6: Final answer
   x = 4,143.92