Finding the Fourth Proportional to 42,184, 63,286.58 and 12,601.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,184 : 63,286.58 = 12,601.72 : x
2. Step 2: Convert to fraction form
   42,184/63,286.58 = 12,601.72/x
3. Step 3: Cross multiply
   42,184x = 63,286.58 × 12,601.72
4. Step 4: Simplify right side
   42,184x = 797,519,760.92
5. Step 5: Solve for x
   x = 797,519,760.92/42,184
6. Step 6: Final answer
   x = 18,905.74