Finding the Fourth Proportional to 21,413.16, 32,111.76 and 7,369.20

Step by Step Solution

1. Step 1: Write the proportion equation
   21,413.16 : 32,111.76 = 7,369.20 : x
2. Step 2: Convert to fraction form
   21,413.16/32,111.76 = 7,369.20/x
3. Step 3: Cross multiply
   21,413.16x = 32,111.76 × 7,369.20
4. Step 4: Simplify right side
   21,413.16x = 236,637,981.79
5. Step 5: Solve for x
   x = 236,637,981.79/21,413.16
6. Step 6: Final answer
   x = 11,051.05