Finding the Fourth Proportional to 9,642,779.33, 13,306,155.89 and 5,721,859.71

Step by Step Solution

1. Step 1: Write the proportion equation
   9,642,779.33 : 13,306,155.89 = 5,721,859.71 : x
2. Step 2: Convert to fraction form
   9,642,779.33/13,306,155.89 = 5,721,859.71/x
3. Step 3: Cross multiply
   9,642,779.33x = 13,306,155.89 × 5,721,859.71
4. Step 4: Simplify right side
   9,642,779.33x = 76,135,957,253,360.89
5. Step 5: Solve for x
   x = 76,135,957,253,360.89/9,642,779.33
6. Step 6: Final answer
   x = 7,895,644.47