Finding the Fourth Proportional to 53,105.57, 79,672.06 and 19,825.91

Step by Step Solution

1. Step 1: Write the proportion equation
   53,105.57 : 79,672.06 = 19,825.91 : x
2. Step 2: Convert to fraction form
   53,105.57/79,672.06 = 19,825.91/x
3. Step 3: Cross multiply
   53,105.57x = 79,672.06 × 19,825.91
4. Step 4: Simplify right side
   53,105.57x = 1,579,571,352.90
5. Step 5: Solve for x
   x = 1,579,571,352.90/53,105.57
6. Step 6: Final answer
   x = 29,743.98