Finding the Fourth Proportional to 342,475.98, 472,617.63 and 189,525.30

Step by Step Solution

1. Step 1: Write the proportion equation
   342,475.98 : 472,617.63 = 189,525.30 : x
2. Step 2: Convert to fraction form
   342,475.98/472,617.63 = 189,525.30/x
3. Step 3: Cross multiply
   342,475.98x = 472,617.63 × 189,525.30
4. Step 4: Simplify right side
   342,475.98x = 89,572,998,111.04
5. Step 5: Solve for x
   x = 89,572,998,111.04/342,475.98
6. Step 6: Final answer
   x = 261,545.34