Finding the Fourth Proportional to 21,067,673.58, 29,061,748.80 and 17,151,642.18

Step by Step Solution

1. Step 1: Write the proportion equation
   21,067,673.58 : 29,061,748.80 = 17,151,642.18 : x
2. Step 2: Convert to fraction form
   21,067,673.58/29,061,748.80 = 17,151,642.18/x
3. Step 3: Cross multiply
   21,067,673.58x = 29,061,748.80 × 17,151,642.18
4. Step 4: Simplify right side
   21,067,673.58x = 498,456,716,542,644.38
5. Step 5: Solve for x
   x = 498,456,716,542,644.38/21,067,673.58
6. Step 6: Final answer
   x = 23,659,789.23