Finding the Fourth Proportional to 199,237.18, 274,947.41 and 113,196.31

Step by Step Solution

1. Step 1: Write the proportion equation
   199,237.18 : 274,947.41 = 113,196.31 : x
2. Step 2: Convert to fraction form
   199,237.18/274,947.41 = 113,196.31/x
3. Step 3: Cross multiply
   199,237.18x = 274,947.41 × 113,196.31
4. Step 4: Simplify right side
   199,237.18x = 31,123,032,256.06
5. Step 5: Solve for x
   x = 31,123,032,256.06/199,237.18
6. Step 6: Final answer
   x = 156,210.97