Finding the Fourth Proportional to 69,784.52, 104,680.20 and 19,868.12

Step by Step Solution

1. Step 1: Write the proportion equation
   69,784.52 : 104,680.20 = 19,868.12 : x
2. Step 2: Convert to fraction form
   69,784.52/104,680.20 = 19,868.12/x
3. Step 3: Cross multiply
   69,784.52x = 104,680.20 × 19,868.12
4. Step 4: Simplify right side
   69,784.52x = 2,079,798,775.22
5. Step 5: Solve for x
   x = 2,079,798,775.22/69,784.52
6. Step 6: Final answer
   x = 29,803.15