Finding the Fourth Proportional to 199,997.57, 276,022.04 and 113,987.47

Step by Step Solution

1. Step 1: Write the proportion equation
   199,997.57 : 276,022.04 = 113,987.47 : x
2. Step 2: Convert to fraction form
   199,997.57/276,022.04 = 113,987.47/x
3. Step 3: Cross multiply
   199,997.57x = 276,022.04 × 113,987.47
4. Step 4: Simplify right side
   199,997.57x = 31,463,054,003.84
5. Step 5: Solve for x
   x = 31,463,054,003.84/199,997.57
6. Step 6: Final answer
   x = 157,317.18