Finding the Fourth Proportional to 34,131.33, 51,203.78 and 10,442.21

Step by Step Solution

1. Step 1: Write the proportion equation
   34,131.33 : 51,203.78 = 10,442.21 : x
2. Step 2: Convert to fraction form
   34,131.33/51,203.78 = 10,442.21/x
3. Step 3: Cross multiply
   34,131.33x = 51,203.78 × 10,442.21
4. Step 4: Simplify right side
   34,131.33x = 534,680,315.32
5. Step 5: Solve for x
   x = 534,680,315.32/34,131.33
6. Step 6: Final answer
   x = 15,665.38