Finding the Fourth Proportional to 42,007.98, 63,016.83 and 13,930.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,007.98 : 63,016.83 = 13,930.50 : x
2. Step 2: Convert to fraction form
   42,007.98/63,016.83 = 13,930.50/x
3. Step 3: Cross multiply
   42,007.98x = 63,016.83 × 13,930.50
4. Step 4: Simplify right side
   42,007.98x = 877,855,950.32
5. Step 5: Solve for x
   x = 877,855,950.32/42,007.98
6. Step 6: Final answer
   x = 20,897.36