Finding the Fourth Proportional to 267,333.12, 400,971.42 and 140,922.72

Step by Step Solution

1. Step 1: Write the proportion equation
   267,333.12 : 400,971.42 = 140,922.72 : x
2. Step 2: Convert to fraction form
   267,333.12/400,971.42 = 140,922.72/x
3. Step 3: Cross multiply
   267,333.12x = 400,971.42 × 140,922.72
4. Step 4: Simplify right side
   267,333.12x = 56,505,983,148.66
5. Step 5: Solve for x
   x = 56,505,983,148.66/267,333.12
6. Step 6: Final answer
   x = 211,369.18