Finding the Fourth Proportional to 28,003.19, 41,980.82 and 12,196.17

Step by Step Solution

1. Step 1: Write the proportion equation
   28,003.19 : 41,980.82 = 12,196.17 : x
2. Step 2: Convert to fraction form
   28,003.19/41,980.82 = 12,196.17/x
3. Step 3: Cross multiply
   28,003.19x = 41,980.82 × 12,196.17
4. Step 4: Simplify right side
   28,003.19x = 512,005,156.48
5. Step 5: Solve for x
   x = 512,005,156.48/28,003.19
6. Step 6: Final answer
   x = 18,283.82