Finding the Fourth Proportional to 40,630.79, 60,947.77 and 12,548.34

Step by Step Solution

1. Step 1: Write the proportion equation
   40,630.79 : 60,947.77 = 12,548.34 : x
2. Step 2: Convert to fraction form
   40,630.79/60,947.77 = 12,548.34/x
3. Step 3: Cross multiply
   40,630.79x = 60,947.77 × 12,548.34
4. Step 4: Simplify right side
   40,630.79x = 764,793,355.89
5. Step 5: Solve for x
   x = 764,793,355.89/40,630.79
6. Step 6: Final answer
   x = 18,823.00