Finding the Fourth Proportional to 42,264.93, 63,403.58 and 12,685.10

Step by Step Solution

1. Step 1: Write the proportion equation
   42,264.93 : 63,403.58 = 12,685.10 : x
2. Step 2: Convert to fraction form
   42,264.93/63,403.58 = 12,685.10/x
3. Step 3: Cross multiply
   42,264.93x = 63,403.58 × 12,685.10
4. Step 4: Simplify right side
   42,264.93x = 804,280,752.66
5. Step 5: Solve for x
   x = 804,280,752.66/42,264.93
6. Step 6: Final answer
   x = 19,029.51