Finding the Fourth Proportional to 140,064.29, 210,158.04 and 73,488.72

Step by Step Solution

1. Step 1: Write the proportion equation
   140,064.29 : 210,158.04 = 73,488.72 : x
2. Step 2: Convert to fraction form
   140,064.29/210,158.04 = 73,488.72/x
3. Step 3: Cross multiply
   140,064.29x = 210,158.04 × 73,488.72
4. Step 4: Simplify right side
   140,064.29x = 15,444,245,238.85
5. Step 5: Solve for x
   x = 15,444,245,238.85/140,064.29
6. Step 6: Final answer
   x = 110,265.40