Finding the Fourth Proportional to 32,892.26, 49,343.71 and 12,890.91

Step by Step Solution

1. Step 1: Write the proportion equation
   32,892.26 : 49,343.71 = 12,890.91 : x
2. Step 2: Convert to fraction form
   32,892.26/49,343.71 = 12,890.91/x
3. Step 3: Cross multiply
   32,892.26x = 49,343.71 × 12,890.91
4. Step 4: Simplify right side
   32,892.26x = 636,085,045.73
5. Step 5: Solve for x
   x = 636,085,045.73/32,892.26
6. Step 6: Final answer
   x = 19,338.44