Finding the Fourth Proportional to 22,019.60, 30,345.10 and 21,614.74

Step by Step Solution

1. Step 1: Write the proportion equation
   22,019.60 : 30,345.10 = 21,614.74 : x
2. Step 2: Convert to fraction form
   22,019.60/30,345.10 = 21,614.74/x
3. Step 3: Cross multiply
   22,019.60x = 30,345.10 × 21,614.74
4. Step 4: Simplify right side
   22,019.60x = 655,901,308.82
5. Step 5: Solve for x
   x = 655,901,308.82/22,019.60
6. Step 6: Final answer
   x = 29,787.16