Finding the Fourth Proportional to 42,289.72, 63,435.61 and 14,210.18

Step by Step Solution

1. Step 1: Write the proportion equation
   42,289.72 : 63,435.61 = 14,210.18 : x
2. Step 2: Convert to fraction form
   42,289.72/63,435.61 = 14,210.18/x
3. Step 3: Cross multiply
   42,289.72x = 63,435.61 × 14,210.18
4. Step 4: Simplify right side
   42,289.72x = 901,431,436.51
5. Step 5: Solve for x
   x = 901,431,436.51/42,289.72
6. Step 6: Final answer
   x = 21,315.62