Finding the Fourth Proportional to 146,196.21, 219,225.18 and 67,287.09

Step by Step Solution

1. Step 1: Write the proportion equation
   146,196.21 : 219,225.18 = 67,287.09 : x
2. Step 2: Convert to fraction form
   146,196.21/219,225.18 = 67,287.09/x
3. Step 3: Cross multiply
   146,196.21x = 219,225.18 × 67,287.09
4. Step 4: Simplify right side
   146,196.21x = 14,751,024,416.93
5. Step 5: Solve for x
   x = 14,751,024,416.93/146,196.21
6. Step 6: Final answer
   x = 100,898.82