Finding the Fourth Proportional to 42,208.16, 63,280.79 and 14,111.59

Step by Step Solution

1. Step 1: Write the proportion equation
   42,208.16 : 63,280.79 = 14,111.59 : x
2. Step 2: Convert to fraction form
   42,208.16/63,280.79 = 14,111.59/x
3. Step 3: Cross multiply
   42,208.16x = 63,280.79 × 14,111.59
4. Step 4: Simplify right side
   42,208.16x = 892,992,563.36
5. Step 5: Solve for x
   x = 892,992,563.36/42,208.16
6. Step 6: Final answer
   x = 21,156.87