Finding the Fourth Proportional to 22,485.30, 31,030.14 and 12,413.71

Step by Step Solution

1. Step 1: Write the proportion equation
   22,485.30 : 31,030.14 = 12,413.71 : x
2. Step 2: Convert to fraction form
   22,485.30/31,030.14 = 12,413.71/x
3. Step 3: Cross multiply
   22,485.30x = 31,030.14 × 12,413.71
4. Step 4: Simplify right side
   22,485.30x = 385,199,159.22
5. Step 5: Solve for x
   x = 385,199,159.22/22,485.30
6. Step 6: Final answer
   x = 17,131.16