Finding the Fourth Proportional to 35,280.15, 48,686.78 and 19,364.79

Step by Step Solution

1. Step 1: Write the proportion equation
   35,280.15 : 48,686.78 = 19,364.79 : x
2. Step 2: Convert to fraction form
   35,280.15/48,686.78 = 19,364.79/x
3. Step 3: Cross multiply
   35,280.15x = 48,686.78 × 19,364.79
4. Step 4: Simplify right side
   35,280.15x = 942,809,173.65
5. Step 5: Solve for x
   x = 942,809,173.65/35,280.15
6. Step 6: Final answer
   x = 26,723.50