Finding the Fourth Proportional to 267,111.55, 400,742.42 and 107,299.69

Step by Step Solution

1. Step 1: Write the proportion equation
   267,111.55 : 400,742.42 = 107,299.69 : x
2. Step 2: Convert to fraction form
   267,111.55/400,742.42 = 107,299.69/x
3. Step 3: Cross multiply
   267,111.55x = 400,742.42 × 107,299.69
4. Step 4: Simplify right side
   267,111.55x = 42,999,537,435.85
5. Step 5: Solve for x
   x = 42,999,537,435.85/267,111.55
6. Step 6: Final answer
   x = 160,979.70