Finding the Fourth Proportional to 140,058.59, 193,282.25 and 76,397.72

Step by Step Solution

1. Step 1: Write the proportion equation
   140,058.59 : 193,282.25 = 76,397.72 : x
2. Step 2: Convert to fraction form
   140,058.59/193,282.25 = 76,397.72/x
3. Step 3: Cross multiply
   140,058.59x = 193,282.25 × 76,397.72
4. Step 4: Simplify right side
   140,058.59x = 14,766,321,868.07
5. Step 5: Solve for x
   x = 14,766,321,868.07/140,058.59
6. Step 6: Final answer
   x = 105,429.61