Finding the Fourth Proportional to 33,111, 45,702.90 and 19,691.76

Step by Step Solution

1. Step 1: Write the proportion equation
   33,111 : 45,702.90 = 19,691.76 : x
2. Step 2: Convert to fraction form
   33,111/45,702.90 = 19,691.76/x
3. Step 3: Cross multiply
   33,111x = 45,702.90 × 19,691.76
4. Step 4: Simplify right side
   33,111x = 899,970,538.10
5. Step 5: Solve for x
   x = 899,970,538.10/33,111
6. Step 6: Final answer
   x = 27,180.41