Finding the Fourth Proportional to 379,499.10, 523,950.30 and 236,469.30

Step by Step Solution

1. Step 1: Write the proportion equation
   379,499.10 : 523,950.30 = 236,469.30 : x
2. Step 2: Convert to fraction form
   379,499.10/523,950.30 = 236,469.30/x
3. Step 3: Cross multiply
   379,499.10x = 523,950.30 × 236,469.30
4. Step 4: Simplify right side
   379,499.10x = 123,898,160,675.79
5. Step 5: Solve for x
   x = 123,898,160,675.79/379,499.10
6. Step 6: Final answer
   x = 326,478.14