Finding the Fourth Proportional to 76,514.03, 105,587.25 and 42,521.66

Step by Step Solution

1. Step 1: Write the proportion equation
   76,514.03 : 105,587.25 = 42,521.66 : x
2. Step 2: Convert to fraction form
   76,514.03/105,587.25 = 42,521.66/x
3. Step 3: Cross multiply
   76,514.03x = 105,587.25 × 42,521.66
4. Step 4: Simplify right side
   76,514.03x = 4,489,744,404.29
5. Step 5: Solve for x
   x = 4,489,744,404.29/76,514.03
6. Step 6: Final answer
   x = 58,678.71