Finding the Fourth Proportional to 69,077.72, 103,618.78 and 19,153.56

Step by Step Solution

1. Step 1: Write the proportion equation
   69,077.72 : 103,618.78 = 19,153.56 : x
2. Step 2: Convert to fraction form
   69,077.72/103,618.78 = 19,153.56/x
3. Step 3: Cross multiply
   69,077.72x = 103,618.78 × 19,153.56
4. Step 4: Simplify right side
   69,077.72x = 1,984,668,519.86
5. Step 5: Solve for x
   x = 1,984,668,519.86/69,077.72
6. Step 6: Final answer
   x = 28,730.95