Finding the Fourth Proportional to 204,061.47, 306,091.79 and 54,301.78

Step by Step Solution

1. Step 1: Write the proportion equation
   204,061.47 : 306,091.79 = 54,301.78 : x
2. Step 2: Convert to fraction form
   204,061.47/306,091.79 = 54,301.78/x
3. Step 3: Cross multiply
   204,061.47x = 306,091.79 × 54,301.78
4. Step 4: Simplify right side
   204,061.47x = 16,621,329,040.39
5. Step 5: Solve for x
   x = 16,621,329,040.39/204,061.47
6. Step 6: Final answer
   x = 81,452.56