Finding the Fourth Proportional to 342,431.63, 472,569.58 and 189,467.34

Step by Step Solution

1. Step 1: Write the proportion equation
   342,431.63 : 472,569.58 = 189,467.34 : x
2. Step 2: Convert to fraction form
   342,431.63/472,569.58 = 189,467.34/x
3. Step 3: Cross multiply
   342,431.63x = 472,569.58 × 189,467.34
4. Step 4: Simplify right side
   342,431.63x = 89,536,501,287.52
5. Step 5: Solve for x
   x = 89,536,501,287.52/342,431.63
6. Step 6: Final answer
   x = 261,472.64