Finding the Fourth Proportional to 189,922.72, 262,174.06 and 118,338.12

Step by Step Solution

1. Step 1: Write the proportion equation
   189,922.72 : 262,174.06 = 118,338.12 : x
2. Step 2: Convert to fraction form
   189,922.72/262,174.06 = 118,338.12/x
3. Step 3: Cross multiply
   189,922.72x = 262,174.06 × 118,338.12
4. Step 4: Simplify right side
   189,922.72x = 31,025,184,062.30
5. Step 5: Solve for x
   x = 31,025,184,062.30/189,922.72
6. Step 6: Final answer
   x = 163,356.89