Finding the Fourth Proportional to 53,870.29, 80,819.33 and 25,811.99

Step by Step Solution

1. Step 1: Write the proportion equation
   53,870.29 : 80,819.33 = 25,811.99 : x
2. Step 2: Convert to fraction form
   53,870.29/80,819.33 = 25,811.99/x
3. Step 3: Cross multiply
   53,870.29x = 80,819.33 × 25,811.99
4. Step 4: Simplify right side
   53,870.29x = 2,086,107,810.76
5. Step 5: Solve for x
   x = 2,086,107,810.76/53,870.29
6. Step 6: Final answer
   x = 38,724.65