Finding the Fourth Proportional to 42,137.52, 63,224.72 and 19,966.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,137.52 : 63,224.72 = 19,966.72 : x
2. Step 2: Convert to fraction form
   42,137.52/63,224.72 = 19,966.72/x
3. Step 3: Cross multiply
   42,137.52x = 63,224.72 × 19,966.72
4. Step 4: Simplify right side
   42,137.52x = 1,262,390,281.32
5. Step 5: Solve for x
   x = 1,262,390,281.32/42,137.52
6. Step 6: Final answer
   x = 29,958.82