Finding the Fourth Proportional to 45,996.72, 69,021.86 and 19,340.78

Step by Step Solution

1. Step 1: Write the proportion equation
   45,996.72 : 69,021.86 = 19,340.78 : x
2. Step 2: Convert to fraction form
   45,996.72/69,021.86 = 19,340.78/x
3. Step 3: Cross multiply
   45,996.72x = 69,021.86 × 19,340.78
4. Step 4: Simplify right side
   45,996.72x = 1,334,936,685.30
5. Step 5: Solve for x
   x = 1,334,936,685.30/45,996.72
6. Step 6: Final answer
   x = 29,022.43