Finding the Fourth Proportional to 189,060.24, 260,727.82 and 137,992.12

Step by Step Solution

1. Step 1: Write the proportion equation
   189,060.24 : 260,727.82 = 137,992.12 : x
2. Step 2: Convert to fraction form
   189,060.24/260,727.82 = 137,992.12/x
3. Step 3: Cross multiply
   189,060.24x = 260,727.82 × 137,992.12
4. Step 4: Simplify right side
   189,060.24x = 35,978,384,624.78
5. Step 5: Solve for x
   x = 35,978,384,624.78/189,060.24
6. Step 6: Final answer
   x = 190,301.17