Finding the Fourth Proportional to 140,782.71, 211,180.55 and 52,019.67

Step by Step Solution

1. Step 1: Write the proportion equation
   140,782.71 : 211,180.55 = 52,019.67 : x
2. Step 2: Convert to fraction form
   140,782.71/211,180.55 = 52,019.67/x
3. Step 3: Cross multiply
   140,782.71x = 211,180.55 × 52,019.67
4. Step 4: Simplify right side
   140,782.71x = 10,985,542,521.42
5. Step 5: Solve for x
   x = 10,985,542,521.42/140,782.71
6. Step 6: Final answer
   x = 78,031.90