Finding the Fourth Proportional to 22,191.56, 30,624.56 and 12,630.98

Step by Step Solution

1. Step 1: Write the proportion equation
   22,191.56 : 30,624.56 = 12,630.98 : x
2. Step 2: Convert to fraction form
   22,191.56/30,624.56 = 12,630.98/x
3. Step 3: Cross multiply
   22,191.56x = 30,624.56 × 12,630.98
4. Step 4: Simplify right side
   22,191.56x = 386,818,204.87
5. Step 5: Solve for x
   x = 386,818,204.87/22,191.56
6. Step 6: Final answer
   x = 17,430.87