Finding the Fourth Proportional to 35,553.60, 49,064.67 and 19,638.72

Step by Step Solution

1. Step 1: Write the proportion equation
   35,553.60 : 49,064.67 = 19,638.72 : x
2. Step 2: Convert to fraction form
   35,553.60/49,064.67 = 19,638.72/x
3. Step 3: Cross multiply
   35,553.60x = 49,064.67 × 19,638.72
4. Step 4: Simplify right side
   35,553.60x = 963,567,316.02
5. Step 5: Solve for x
   x = 963,567,316.02/35,553.60
6. Step 6: Final answer
   x = 27,101.82