Finding the Fourth Proportional to 69,380.72, 104,052.18 and 19,457.72

Step by Step Solution

1. Step 1: Write the proportion equation
   69,380.72 : 104,052.18 = 19,457.72 : x
2. Step 2: Convert to fraction form
   69,380.72/104,052.18 = 19,457.72/x
3. Step 3: Cross multiply
   69,380.72x = 104,052.18 × 19,457.72
4. Step 4: Simplify right side
   69,380.72x = 2,024,618,086.54
5. Step 5: Solve for x
   x = 2,024,618,086.54/69,380.72
6. Step 6: Final answer
   x = 29,181.28