Finding the Fourth Proportional to 289,773.72, 400,081.88 and 181,043.57

Step by Step Solution

1. Step 1: Write the proportion equation
   289,773.72 : 400,081.88 = 181,043.57 : x
2. Step 2: Convert to fraction form
   289,773.72/400,081.88 = 181,043.57/x
3. Step 3: Cross multiply
   289,773.72x = 400,081.88 × 181,043.57
4. Step 4: Simplify right side
   289,773.72x = 72,432,253,300.33
5. Step 5: Solve for x
   x = 72,432,253,300.33/289,773.72
6. Step 6: Final answer
   x = 249,961.43