Finding the Fourth Proportional to 53,719.89, 80,579.72 and 14,277.00

Step by Step Solution

1. Step 1: Write the proportion equation
   53,719.89 : 80,579.72 = 14,277.00 : x
2. Step 2: Convert to fraction form
   53,719.89/80,579.72 = 14,277.00/x
3. Step 3: Cross multiply
   53,719.89x = 80,579.72 × 14,277.00
4. Step 4: Simplify right side
   53,719.89x = 1,150,436,395.96
5. Step 5: Solve for x
   x = 1,150,436,395.96/53,719.89
6. Step 6: Final answer
   x = 21,415.47