Finding the Fourth Proportional to 33,900.48, 46,780.56 and 19,918.76

Step by Step Solution

1. Step 1: Write the proportion equation
   33,900.48 : 46,780.56 = 19,918.76 : x
2. Step 2: Convert to fraction form
   33,900.48/46,780.56 = 19,918.76/x
3. Step 3: Cross multiply
   33,900.48x = 46,780.56 × 19,918.76
4. Step 4: Simplify right side
   33,900.48x = 931,810,513.40
5. Step 5: Solve for x
   x = 931,810,513.40/33,900.48
6. Step 6: Final answer
   x = 27,486.65