Finding the Fourth Proportional to 22,814.10, 31,463.78 and 21,485.52

Step by Step Solution

1. Step 1: Write the proportion equation
   22,814.10 : 31,463.78 = 21,485.52 : x
2. Step 2: Convert to fraction form
   22,814.10/31,463.78 = 21,485.52/x
3. Step 3: Cross multiply
   22,814.10x = 31,463.78 × 21,485.52
4. Step 4: Simplify right side
   22,814.10x = 676,015,567.04
5. Step 5: Solve for x
   x = 676,015,567.04/22,814.10
6. Step 6: Final answer
   x = 29,631.48