Finding the Fourth Proportional to 42,012.99, 63,016.02 and 13,923.87

Step by Step Solution

1. Step 1: Write the proportion equation
   42,012.99 : 63,016.02 = 13,923.87 : x
2. Step 2: Convert to fraction form
   42,012.99/63,016.02 = 13,923.87/x
3. Step 3: Cross multiply
   42,012.99x = 63,016.02 × 13,923.87
4. Step 4: Simplify right side
   42,012.99x = 877,426,870.40
5. Step 5: Solve for x
   x = 877,426,870.40/42,012.99
6. Step 6: Final answer
   x = 20,884.66