Finding the Fourth Proportional to 42,042.63, 63,063.83 and 13,964.85

Step by Step Solution

1. Step 1: Write the proportion equation
   42,042.63 : 63,063.83 = 13,964.85 : x
2. Step 2: Convert to fraction form
   42,042.63/63,063.83 = 13,964.85/x
3. Step 3: Cross multiply
   42,042.63x = 63,063.83 × 13,964.85
4. Step 4: Simplify right side
   42,042.63x = 880,676,856.55
5. Step 5: Solve for x
   x = 880,676,856.55/42,042.63
6. Step 6: Final answer
   x = 20,947.24