Finding the Fourth Proportional to 53,381.60, 80,081.61 and 21,808.82

Step by Step Solution

1. Step 1: Write the proportion equation
   53,381.60 : 80,081.61 = 21,808.82 : x
2. Step 2: Convert to fraction form
   53,381.60/80,081.61 = 21,808.82/x
3. Step 3: Cross multiply
   53,381.60x = 80,081.61 × 21,808.82
4. Step 4: Simplify right side
   53,381.60x = 1,746,485,417.80
5. Step 5: Solve for x
   x = 1,746,485,417.80/53,381.60
6. Step 6: Final answer
   x = 32,716.99