Finding the Fourth Proportional to 52,894.56, 79,339.68 and 21,729

Step by Step Solution

1. Step 1: Write the proportion equation
   52,894.56 : 79,339.68 = 21,729 : x
2. Step 2: Convert to fraction form
   52,894.56/79,339.68 = 21,729/x
3. Step 3: Cross multiply
   52,894.56x = 79,339.68 × 21,729
4. Step 4: Simplify right side
   52,894.56x = 1,723,971,906.72
5. Step 5: Solve for x
   x = 1,723,971,906.72/52,894.56
6. Step 6: Final answer
   x = 32,592.61