Finding the Fourth Proportional to 69,371.98, 104,060.85 and 21,986.02

Step by Step Solution

1. Step 1: Write the proportion equation
   69,371.98 : 104,060.85 = 21,986.02 : x
2. Step 2: Convert to fraction form
   69,371.98/104,060.85 = 21,986.02/x
3. Step 3: Cross multiply
   69,371.98x = 104,060.85 × 21,986.02
4. Step 4: Simplify right side
   69,371.98x = 2,287,883,929.32
5. Step 5: Solve for x
   x = 2,287,883,929.32/69,371.98
6. Step 6: Final answer
   x = 32,979.94