Finding the Fourth Proportional to 342,116.79, 472,112.85 and 189,151.03

Step by Step Solution

1. Step 1: Write the proportion equation
   342,116.79 : 472,112.85 = 189,151.03 : x
2. Step 2: Convert to fraction form
   342,116.79/472,112.85 = 189,151.03/x
3. Step 3: Cross multiply
   342,116.79x = 472,112.85 × 189,151.03
4. Step 4: Simplify right side
   342,116.79x = 89,300,631,853.74
5. Step 5: Solve for x
   x = 89,300,631,853.74/342,116.79
6. Step 6: Final answer
   x = 261,023.82