Finding the Fourth Proportional to 42,541.74, 63,815.85 and 12,962.10

Step by Step Solution

1. Step 1: Write the proportion equation
   42,541.74 : 63,815.85 = 12,962.10 : x
2. Step 2: Convert to fraction form
   42,541.74/63,815.85 = 12,962.10/x
3. Step 3: Cross multiply
   42,541.74x = 63,815.85 × 12,962.10
4. Step 4: Simplify right side
   42,541.74x = 827,187,429.29
5. Step 5: Solve for x
   x = 827,187,429.29/42,541.74
6. Step 6: Final answer
   x = 19,444.14