Finding the Fourth Proportional to 22,372.17, 30,874.35 and 12,300.99

Step by Step Solution

1. Step 1: Write the proportion equation
   22,372.17 : 30,874.35 = 12,300.99 : x
2. Step 2: Convert to fraction form
   22,372.17/30,874.35 = 12,300.99/x
3. Step 3: Cross multiply
   22,372.17x = 30,874.35 × 12,300.99
4. Step 4: Simplify right side
   22,372.17x = 379,785,070.61
5. Step 5: Solve for x
   x = 379,785,070.61/22,372.17
6. Step 6: Final answer
   x = 16,975.78