Finding the Fourth Proportional to 342,900.12, 473,185.72 and 189,927.96

Step by Step Solution

1. Step 1: Write the proportion equation
   342,900.12 : 473,185.72 = 189,927.96 : x
2. Step 2: Convert to fraction form
   342,900.12/473,185.72 = 189,927.96/x
3. Step 3: Cross multiply
   342,900.12x = 473,185.72 × 189,927.96
4. Step 4: Simplify right side
   342,900.12x = 89,871,198,500.73
5. Step 5: Solve for x
   x = 89,871,198,500.73/342,900.12
6. Step 6: Final answer
   x = 262,091.48