Finding the Fourth Proportional to 203,612.82, 281,019.42 and 112,997.89

Step by Step Solution

1. Step 1: Write the proportion equation
   203,612.82 : 281,019.42 = 112,997.89 : x
2. Step 2: Convert to fraction form
   203,612.82/281,019.42 = 112,997.89/x
3. Step 3: Cross multiply
   203,612.82x = 281,019.42 × 112,997.89
4. Step 4: Simplify right side
   203,612.82x = 31,754,601,509.02
5. Step 5: Solve for x
   x = 31,754,601,509.02/203,612.82
6. Step 6: Final answer
   x = 155,955.81