Finding the Fourth Proportional to 42,053.88, 63,074.72 and 13,587.04

Step by Step Solution

1. Step 1: Write the proportion equation
   42,053.88 : 63,074.72 = 13,587.04 : x
2. Step 2: Convert to fraction form
   42,053.88/63,074.72 = 13,587.04/x
3. Step 3: Cross multiply
   42,053.88x = 63,074.72 × 13,587.04
4. Step 4: Simplify right side
   42,053.88x = 856,998,743.63
5. Step 5: Solve for x
   x = 856,998,743.63/42,053.88
6. Step 6: Final answer
   x = 20,378.59