Finding the Fourth Proportional to 42,047.82, 63,060.98 and 12,458.74

Step by Step Solution

1. Step 1: Write the proportion equation
   42,047.82 : 63,060.98 = 12,458.74 : x
2. Step 2: Convert to fraction form
   42,047.82/63,060.98 = 12,458.74/x
3. Step 3: Cross multiply
   42,047.82x = 63,060.98 × 12,458.74
4. Step 4: Simplify right side
   42,047.82x = 785,660,353.97
5. Step 5: Solve for x
   x = 785,660,353.97/42,047.82
6. Step 6: Final answer
   x = 18,684.92