Finding the Fourth Proportional to 42,085.71, 63,126.52 and 15,788.41

Step by Step Solution

1. Step 1: Write the proportion equation
   42,085.71 : 63,126.52 = 15,788.41 : x
2. Step 2: Convert to fraction form
   42,085.71/63,126.52 = 15,788.41/x
3. Step 3: Cross multiply
   42,085.71x = 63,126.52 × 15,788.41
4. Step 4: Simplify right side
   42,085.71x = 996,667,379.63
5. Step 5: Solve for x
   x = 996,667,379.63/42,085.71
6. Step 6: Final answer
   x = 23,681.85