Finding the Fourth Proportional to 342,080.50, 472,085.67 and 191,177.50

Step by Step Solution

1. Step 1: Write the proportion equation
   342,080.50 : 472,085.67 = 191,177.50 : x
2. Step 2: Convert to fraction form
   342,080.50/472,085.67 = 191,177.50/x
3. Step 3: Cross multiply
   342,080.50x = 472,085.67 × 191,177.50
4. Step 4: Simplify right side
   342,080.50x = 90,252,158,176.43
5. Step 5: Solve for x
   x = 90,252,158,176.43/342,080.50
6. Step 6: Final answer
   x = 263,833.10