Finding the Fourth Proportional to 140,815.42, 211,221.29 and 34,200.25

Step by Step Solution

1. Step 1: Write the proportion equation
   140,815.42 : 211,221.29 = 34,200.25 : x
2. Step 2: Convert to fraction form
   140,815.42/211,221.29 = 34,200.25/x
3. Step 3: Cross multiply
   140,815.42x = 211,221.29 × 34,200.25
4. Step 4: Simplify right side
   140,815.42x = 7,223,820,923.32
5. Step 5: Solve for x
   x = 7,223,820,923.32/140,815.42
6. Step 6: Final answer
   x = 51,299.93