Finding the Fourth Proportional to 33,410.90, 46,090.35 and 19,978.61

Step by Step Solution

1. Step 1: Write the proportion equation
   33,410.90 : 46,090.35 = 19,978.61 : x
2. Step 2: Convert to fraction form
   33,410.90/46,090.35 = 19,978.61/x
3. Step 3: Cross multiply
   33,410.90x = 46,090.35 × 19,978.61
4. Step 4: Simplify right side
   33,410.90x = 920,820,896.96
5. Step 5: Solve for x
   x = 920,820,896.96/33,410.90
6. Step 6: Final answer
   x = 27,560.49