Finding the Fourth Proportional to 21,607.50, 29,820.06 and 12,050.49

Step by Step Solution

1. Step 1: Write the proportion equation
   21,607.50 : 29,820.06 = 12,050.49 : x
2. Step 2: Convert to fraction form
   21,607.50/29,820.06 = 12,050.49/x
3. Step 3: Cross multiply
   21,607.50x = 29,820.06 × 12,050.49
4. Step 4: Simplify right side
   21,607.50x = 359,346,334.83
5. Step 5: Solve for x
   x = 359,346,334.83/21,607.50
6. Step 6: Final answer
   x = 16,630.63