Finding the Fourth Proportional to 19,455.30, 29,204.55 and 12,068.10

Step by Step Solution

1. Step 1: Write the proportion equation
   19,455.30 : 29,204.55 = 12,068.10 : x
2. Step 2: Convert to fraction form
   19,455.30/29,204.55 = 12,068.10/x
3. Step 3: Cross multiply
   19,455.30x = 29,204.55 × 12,068.10
4. Step 4: Simplify right side
   19,455.30x = 352,443,429.86
5. Step 5: Solve for x
   x = 352,443,429.86/19,455.30
6. Step 6: Final answer
   x = 18,115.55