Finding the Fourth Proportional to 35,500.60, 48,990.72 and 19,586.80

Step by Step Solution

1. Step 1: Write the proportion equation
   35,500.60 : 48,990.72 = 19,586.80 : x
2. Step 2: Convert to fraction form
   35,500.60/48,990.72 = 19,586.80/x
3. Step 3: Cross multiply
   35,500.60x = 48,990.72 × 19,586.80
4. Step 4: Simplify right side
   35,500.60x = 959,571,434.50
5. Step 5: Solve for x
   x = 959,571,434.50/35,500.60
6. Step 6: Final answer
   x = 27,029.72