Finding the Fourth Proportional to 230,404.50, 345,609.18 and 64,192.50

Step by Step Solution

1. Step 1: Write the proportion equation
   230,404.50 : 345,609.18 = 64,192.50 : x
2. Step 2: Convert to fraction form
   230,404.50/345,609.18 = 64,192.50/x
3. Step 3: Cross multiply
   230,404.50x = 345,609.18 × 64,192.50
4. Step 4: Simplify right side
   230,404.50x = 22,185,517,287.15
5. Step 5: Solve for x
   x = 22,185,517,287.15/230,404.50
6. Step 6: Final answer
   x = 96,289.43