Finding the Fourth Proportional to 342,591, 472,763.50 and 189,629.48

Step by Step Solution

1. Step 1: Write the proportion equation
   342,591 : 472,763.50 = 189,629.48 : x
2. Step 2: Convert to fraction form
   342,591/472,763.50 = 189,629.48/x
3. Step 3: Cross multiply
   342,591x = 472,763.50 × 189,629.48
4. Step 4: Simplify right side
   342,591x = 89,649,896,667.98
5. Step 5: Solve for x
   x = 89,649,896,667.98/342,591
6. Step 6: Final answer
   x = 261,682.00