Finding the Fourth Proportional to 69,076.72, 103,617.28 and 19,152.56

Step by Step Solution

1. Step 1: Write the proportion equation
   69,076.72 : 103,617.28 = 19,152.56 : x
2. Step 2: Convert to fraction form
   69,076.72/103,617.28 = 19,152.56/x
3. Step 3: Cross multiply
   69,076.72x = 103,617.28 × 19,152.56
4. Step 4: Simplify right side
   69,076.72x = 1,984,536,172.24
5. Step 5: Solve for x
   x = 1,984,536,172.24/69,076.72
6. Step 6: Final answer
   x = 28,729.45