Finding the Fourth Proportional to 942,081.72, 1,413,090.18 and 268,167.12

Step by Step Solution

1. Step 1: Write the proportion equation
   942,081.72 : 1,413,090.18 = 268,167.12 : x
2. Step 2: Convert to fraction form
   942,081.72/1,413,090.18 = 268,167.12/x
3. Step 3: Cross multiply
   942,081.72x = 1,413,090.18 × 268,167.12
4. Step 4: Simplify right side
   942,081.72x = 378,944,323,870.88
5. Step 5: Solve for x
   x = 378,944,323,870.88/942,081.72
6. Step 6: Final answer
   x = 402,241.46