Finding the Fourth Proportional to 69,221.12, 103,828.56 and 19,300.24

Step by Step Solution

1. Step 1: Write the proportion equation
   69,221.12 : 103,828.56 = 19,300.24 : x
2. Step 2: Convert to fraction form
   69,221.12/103,828.56 = 19,300.24/x
3. Step 3: Cross multiply
   69,221.12x = 103,828.56 × 19,300.24
4. Step 4: Simplify right side
   69,221.12x = 2,003,916,126.85
5. Step 5: Solve for x
   x = 2,003,916,126.85/69,221.12
6. Step 6: Final answer
   x = 28,949.49