Finding the Fourth Proportional to 42,237.92, 63,347.52 and 12,651.86

Step by Step Solution

1. Step 1: Write the proportion equation
   42,237.92 : 63,347.52 = 12,651.86 : x
2. Step 2: Convert to fraction form
   42,237.92/63,347.52 = 12,651.86/x
3. Step 3: Cross multiply
   42,237.92x = 63,347.52 × 12,651.86
4. Step 4: Simplify right side
   42,237.92x = 801,463,954.39
5. Step 5: Solve for x
   x = 801,463,954.39/42,237.92
6. Step 6: Final answer
   x = 18,974.99