Finding the Fourth Proportional to 42,041.90, 63,062.69 and 13,964.10

Step by Step Solution

1. Step 1: Write the proportion equation
   42,041.90 : 63,062.69 = 13,964.10 : x
2. Step 2: Convert to fraction form
   42,041.90/63,062.69 = 13,964.10/x
3. Step 3: Cross multiply
   42,041.90x = 63,062.69 × 13,964.10
4. Step 4: Simplify right side
   42,041.90x = 880,613,639.61
5. Step 5: Solve for x
   x = 880,613,639.61/42,041.90
6. Step 6: Final answer
   x = 20,946.10