Finding the Fourth Proportional to 69,695.40, 104,549.58 and 19,776.72

Step by Step Solution

1. Step 1: Write the proportion equation
   69,695.40 : 104,549.58 = 19,776.72 : x
2. Step 2: Convert to fraction form
   69,695.40/104,549.58 = 19,776.72/x
3. Step 3: Cross multiply
   69,695.40x = 104,549.58 × 19,776.72
4. Step 4: Simplify right side
   69,695.40x = 2,067,647,670.89
5. Step 5: Solve for x
   x = 2,067,647,670.89/69,695.40
6. Step 6: Final answer
   x = 29,666.92