Finding the Fourth Proportional to 342,485.46, 472,622.86 and 189,523.55

Step by Step Solution

1. Step 1: Write the proportion equation
   342,485.46 : 472,622.86 = 189,523.55 : x
2. Step 2: Convert to fraction form
   342,485.46/472,622.86 = 189,523.55/x
3. Step 3: Cross multiply
   342,485.46x = 472,622.86 × 189,523.55
4. Step 4: Simplify right side
   342,485.46x = 89,573,162,946.10
5. Step 5: Solve for x
   x = 89,573,162,946.10/342,485.46
6. Step 6: Final answer
   x = 261,538.59