Finding the Fourth Proportional to 42,007.48, 63,016.08 and 13,930

Step by Step Solution

1. Step 1: Write the proportion equation
   42,007.48 : 63,016.08 = 13,930 : x
2. Step 2: Convert to fraction form
   42,007.48/63,016.08 = 13,930/x
3. Step 3: Cross multiply
   42,007.48x = 63,016.08 × 13,930
4. Step 4: Simplify right side
   42,007.48x = 877,813,994.40
5. Step 5: Solve for x
   x = 877,813,994.40/42,007.48
6. Step 6: Final answer
   x = 20,896.61