Finding the Fourth Proportional to 15,735,061.10, 21,557,110.61 and 15,145,315.37

Step by Step Solution

1. Step 1: Write the proportion equation
   15,735,061.10 : 21,557,110.61 = 15,145,315.37 : x
2. Step 2: Convert to fraction form
   15,735,061.10/21,557,110.61 = 15,145,315.37/x
3. Step 3: Cross multiply
   15,735,061.10x = 21,557,110.61 × 15,145,315.37
4. Step 4: Simplify right side
   15,735,061.10x = 326,489,238,470,910.94
5. Step 5: Solve for x
   x = 326,489,238,470,910.94/15,735,061.10
6. Step 6: Final answer
   x = 20,749,156.07