Finding the Fourth Proportional to 69,528.72, 104,292 and 16,938.12

Step by Step Solution

1. Step 1: Write the proportion equation
   69,528.72 : 104,292 = 16,938.12 : x
2. Step 2: Convert to fraction form
   69,528.72/104,292 = 16,938.12/x
3. Step 3: Cross multiply
   69,528.72x = 104,292 × 16,938.12
4. Step 4: Simplify right side
   69,528.72x = 1,766,510,411.04
5. Step 5: Solve for x
   x = 1,766,510,411.04/69,528.72
6. Step 6: Final answer
   x = 25,406.92