Finding the Fourth Proportional to 22,523.86, 31,085.91 and 21,784.53

Step by Step Solution

1. Step 1: Write the proportion equation
   22,523.86 : 31,085.91 = 21,784.53 : x
2. Step 2: Convert to fraction form
   22,523.86/31,085.91 = 21,784.53/x
3. Step 3: Cross multiply
   22,523.86x = 31,085.91 × 21,784.53
4. Step 4: Simplify right side
   22,523.86x = 677,191,938.97
5. Step 5: Solve for x
   x = 677,191,938.97/22,523.86
6. Step 6: Final answer
   x = 30,065.54