Finding the Fourth Proportional to 21,732,111.73, 29,977,826.83 and 13,569,177.97

Step by Step Solution

1. Step 1: Write the proportion equation
   21,732,111.73 : 29,977,826.83 = 13,569,177.97 : x
2. Step 2: Convert to fraction form
   21,732,111.73/29,977,826.83 = 13,569,177.97/x
3. Step 3: Cross multiply
   21,732,111.73x = 29,977,826.83 × 13,569,177.97
4. Step 4: Simplify right side
   21,732,111.73x = 406,774,467,410,110.94
5. Step 5: Solve for x
   x = 406,774,467,410,110.94/21,732,111.73
6. Step 6: Final answer
   x = 18,717,668.70