Finding the Fourth Proportional to 52,789.76, 79,184.72 and 21,646.88

Step by Step Solution

1. Step 1: Write the proportion equation
   52,789.76 : 79,184.72 = 21,646.88 : x
2. Step 2: Convert to fraction form
   52,789.76/79,184.72 = 21,646.88/x
3. Step 3: Cross multiply
   52,789.76x = 79,184.72 × 21,646.88
4. Step 4: Simplify right side
   52,789.76x = 1,714,102,131.67
5. Step 5: Solve for x
   x = 1,714,102,131.67/52,789.76
6. Step 6: Final answer
   x = 32,470.35