Finding the Fourth Proportional to 42,072.72, 63,116.52 and 14,364.24

Step by Step Solution

1. Step 1: Write the proportion equation
   42,072.72 : 63,116.52 = 14,364.24 : x
2. Step 2: Convert to fraction form
   42,072.72/63,116.52 = 14,364.24/x
3. Step 3: Cross multiply
   42,072.72x = 63,116.52 × 14,364.24
4. Step 4: Simplify right side
   42,072.72x = 906,620,841.24
5. Step 5: Solve for x
   x = 906,620,841.24/42,072.72
6. Step 6: Final answer
   x = 21,548.90