Finding the Fourth Proportional to 22,588,229.27, 31,174,413.59 and 13,420,872.02

Step by Step Solution

1. Step 1: Write the proportion equation
   22,588,229.27 : 31,174,413.59 = 13,420,872.02 : x
2. Step 2: Convert to fraction form
   22,588,229.27/31,174,413.59 = 13,420,872.02/x
3. Step 3: Cross multiply
   22,588,229.27x = 31,174,413.59 × 13,420,872.02
4. Step 4: Simplify right side
   22,588,229.27x = 418,387,815,089,938.75
5. Step 5: Solve for x
   x = 418,387,815,089,938.75/22,588,229.27
6. Step 6: Final answer
   x = 18,522,382.17