Finding the Fourth Proportional to 22,971.03, 31,601.59 and 21,986.88

Step by Step Solution

1. Step 1: Write the proportion equation
   22,971.03 : 31,601.59 = 21,986.88 : x
2. Step 2: Convert to fraction form
   22,971.03/31,601.59 = 21,986.88/x
3. Step 3: Cross multiply
   22,971.03x = 31,601.59 × 21,986.88
4. Step 4: Simplify right side
   22,971.03x = 694,820,317.34
5. Step 5: Solve for x
   x = 694,820,317.34/22,971.03
6. Step 6: Final answer
   x = 30,247.68