Finding the Fourth Proportional to 76,514.29, 105,582.96 and 42,520.61

Step by Step Solution

1. Step 1: Write the proportion equation
   76,514.29 : 105,582.96 = 42,520.61 : x
2. Step 2: Convert to fraction form
   76,514.29/105,582.96 = 42,520.61/x
3. Step 3: Cross multiply
   76,514.29x = 105,582.96 × 42,520.61
4. Step 4: Simplify right side
   76,514.29x = 4,489,452,128.76
5. Step 5: Solve for x
   x = 4,489,452,128.76/76,514.29
6. Step 6: Final answer
   x = 58,674.69