Finding the Fourth Proportional to 33,427.60, 46,128.72 and 19,990.92

Step by Step Solution

1. Step 1: Write the proportion equation
   33,427.60 : 46,128.72 = 19,990.92 : x
2. Step 2: Convert to fraction form
   33,427.60/46,128.72 = 19,990.92/x
3. Step 3: Cross multiply
   33,427.60x = 46,128.72 × 19,990.92
4. Step 4: Simplify right side
   33,427.60x = 922,155,551.22
5. Step 5: Solve for x
   x = 922,155,551.22/33,427.60
6. Step 6: Final answer
   x = 27,586.65