Finding the Fourth Proportional to 42,236, 63,347.12 and 14,168.48

Step by Step Solution

1. Step 1: Write the proportion equation
   42,236 : 63,347.12 = 14,168.48 : x
2. Step 2: Convert to fraction form
   42,236/63,347.12 = 14,168.48/x
3. Step 3: Cross multiply
   42,236x = 63,347.12 × 14,168.48
4. Step 4: Simplify right side
   42,236x = 897,532,402.78
5. Step 5: Solve for x
   x = 897,532,402.78/42,236
6. Step 6: Final answer
   x = 21,250.41