Finding the Fourth Proportional to 42,060.47, 63,067.07 and 13,965.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,060.47 : 63,067.07 = 13,965.50 : x
2. Step 2: Convert to fraction form
   42,060.47/63,067.07 = 13,965.50/x
3. Step 3: Cross multiply
   42,060.47x = 63,067.07 × 13,965.50
4. Step 4: Simplify right side
   42,060.47x = 880,762,885.66
5. Step 5: Solve for x
   x = 880,762,885.66/42,060.47
6. Step 6: Final answer
   x = 20,940.39