Finding the Fourth Proportional to 69,701.31, 104,536.31 and 19,780.34

Step by Step Solution

1. Step 1: Write the proportion equation
   69,701.31 : 104,536.31 = 19,780.34 : x
2. Step 2: Convert to fraction form
   69,701.31/104,536.31 = 19,780.34/x
3. Step 3: Cross multiply
   69,701.31x = 104,536.31 × 19,780.34
4. Step 4: Simplify right side
   69,701.31x = 2,067,763,132.56
5. Step 5: Solve for x
   x = 2,067,763,132.56/69,701.31
6. Step 6: Final answer
   x = 29,666.06