Finding the Fourth Proportional to 10,061.78, 15,087.80 and 4,216.82

Step by Step Solution

1. Step 1: Write the proportion equation
   10,061.78 : 15,087.80 = 4,216.82 : x
2. Step 2: Convert to fraction form
   10,061.78/15,087.80 = 4,216.82/x
3. Step 3: Cross multiply
   10,061.78x = 15,087.80 × 4,216.82
4. Step 4: Simplify right side
   10,061.78x = 63,622,440.27
5. Step 5: Solve for x
   x = 63,622,440.27/10,061.78
6. Step 6: Final answer
   x = 6,323.18