Finding the Fourth Proportional to 42,112.56, 63,172.24 and 14,031.60

Step by Step Solution

1. Step 1: Write the proportion equation
   42,112.56 : 63,172.24 = 14,031.60 : x
2. Step 2: Convert to fraction form
   42,112.56/63,172.24 = 14,031.60/x
3. Step 3: Cross multiply
   42,112.56x = 63,172.24 × 14,031.60
4. Step 4: Simplify right side
   42,112.56x = 886,407,602.78
5. Step 5: Solve for x
   x = 886,407,602.78/42,112.56
6. Step 6: Final answer
   x = 21,048.53