Finding the Fourth Proportional to 35,837.72, 49,453.88 and 19,921.60

Step by Step Solution

1. Step 1: Write the proportion equation
   35,837.72 : 49,453.88 = 19,921.60 : x
2. Step 2: Convert to fraction form
   35,837.72/49,453.88 = 19,921.60/x
3. Step 3: Cross multiply
   35,837.72x = 49,453.88 × 19,921.60
4. Step 4: Simplify right side
   35,837.72x = 985,200,415.81
5. Step 5: Solve for x
   x = 985,200,415.81/35,837.72
6. Step 6: Final answer
   x = 27,490.60