Finding the Fourth Proportional to 237,311.50, 355,911.16 and 87,470.42

Step by Step Solution

1. Step 1: Write the proportion equation
   237,311.50 : 355,911.16 = 87,470.42 : x
2. Step 2: Convert to fraction form
   237,311.50/355,911.16 = 87,470.42/x
3. Step 3: Cross multiply
   237,311.50x = 355,911.16 × 87,470.42
4. Step 4: Simplify right side
   237,311.50x = 31,131,698,647.89
5. Step 5: Solve for x
   x = 31,131,698,647.89/237,311.50
6. Step 6: Final answer
   x = 131,184.96