Finding the Fourth Proportional to 33,410.16, 46,080.10 and 19,978.79

Step by Step Solution

1. Step 1: Write the proportion equation
   33,410.16 : 46,080.10 = 19,978.79 : x
2. Step 2: Convert to fraction form
   33,410.16/46,080.10 = 19,978.79/x
3. Step 3: Cross multiply
   33,410.16x = 46,080.10 × 19,978.79
4. Step 4: Simplify right side
   33,410.16x = 920,624,641.08
5. Step 5: Solve for x
   x = 920,624,641.08/33,410.16
6. Step 6: Final answer
   x = 27,555.23