Finding the Fourth Proportional to 40,076.78, 60,106.96 and 13,783.57

Step by Step Solution

1. Step 1: Write the proportion equation
   40,076.78 : 60,106.96 = 13,783.57 : x
2. Step 2: Convert to fraction form
   40,076.78/60,106.96 = 13,783.57/x
3. Step 3: Cross multiply
   40,076.78x = 60,106.96 × 13,783.57
4. Step 4: Simplify right side
   40,076.78x = 828,488,357.61
5. Step 5: Solve for x
   x = 828,488,357.61/40,076.78
6. Step 6: Final answer
   x = 20,672.53