Finding the Fourth Proportional to 342,526.46, 472,676.78 and 189,571.05

Step by Step Solution

1. Step 1: Write the proportion equation
   342,526.46 : 472,676.78 = 189,571.05 : x
2. Step 2: Convert to fraction form
   342,526.46/472,676.78 = 189,571.05/x
3. Step 3: Cross multiply
   342,526.46x = 472,676.78 × 189,571.05
4. Step 4: Simplify right side
   342,526.46x = 89,605,833,969.15
5. Step 5: Solve for x
   x = 89,605,833,969.15/342,526.46
6. Step 6: Final answer
   x = 261,602.67