Finding the Fourth Proportional to 42,025.36, 63,047.74 and 13,943.32

Step by Step Solution

1. Step 1: Write the proportion equation
   42,025.36 : 63,047.74 = 13,943.32 : x
2. Step 2: Convert to fraction form
   42,025.36/63,047.74 = 13,943.32/x
3. Step 3: Cross multiply
   42,025.36x = 63,047.74 × 13,943.32
4. Step 4: Simplify right side
   42,025.36x = 879,094,814.10
5. Step 5: Solve for x
   x = 879,094,814.10/42,025.36
6. Step 6: Final answer
   x = 20,918.20