Finding the Fourth Proportional to 109,540.73, 164,234.96 and 42,987.49

Step by Step Solution

1. Step 1: Write the proportion equation
   109,540.73 : 164,234.96 = 42,987.49 : x
2. Step 2: Convert to fraction form
   109,540.73/164,234.96 = 42,987.49/x
3. Step 3: Cross multiply
   109,540.73x = 164,234.96 × 42,987.49
4. Step 4: Simplify right side
   109,540.73x = 7,060,048,236.33
5. Step 5: Solve for x
   x = 7,060,048,236.33/109,540.73
6. Step 6: Final answer
   x = 64,451.35