Finding the Fourth Proportional to 140,804.32, 211,288.56 and 52,119.52

Step by Step Solution

1. Step 1: Write the proportion equation
   140,804.32 : 211,288.56 = 52,119.52 : x
2. Step 2: Convert to fraction form
   140,804.32/211,288.56 = 52,119.52/x
3. Step 3: Cross multiply
   140,804.32x = 211,288.56 × 52,119.52
4. Step 4: Simplify right side
   140,804.32x = 11,012,258,328.69
5. Step 5: Solve for x
   x = 11,012,258,328.69/140,804.32
6. Step 6: Final answer
   x = 78,209.66