Finding the Fourth Proportional to 22,897.76, 31,544.96 and 21,519.95

Step by Step Solution

1. Step 1: Write the proportion equation
   22,897.76 : 31,544.96 = 21,519.95 : x
2. Step 2: Convert to fraction form
   22,897.76/31,544.96 = 21,519.95/x
3. Step 3: Cross multiply
   22,897.76x = 31,544.96 × 21,519.95
4. Step 4: Simplify right side
   22,897.76x = 678,846,094.61
5. Step 5: Solve for x
   x = 678,846,094.61/22,897.76
6. Step 6: Final answer
   x = 29,646.83