Finding the Fourth Proportional to 342,077.50, 472,081.53 and 191,174.50

Step by Step Solution

1. Step 1: Write the proportion equation
   342,077.50 : 472,081.53 = 191,174.50 : x
2. Step 2: Convert to fraction form
   342,077.50/472,081.53 = 191,174.50/x
3. Step 3: Cross multiply
   342,077.50x = 472,081.53 × 191,174.50
4. Step 4: Simplify right side
   342,077.50x = 90,249,950,456.99
5. Step 5: Solve for x
   x = 90,249,950,456.99/342,077.50
6. Step 6: Final answer
   x = 263,828.96