Finding the Fourth Proportional to 47,766.42, 65,947.50 and 30,779.10

Step by Step Solution

1. Step 1: Write the proportion equation
   47,766.42 : 65,947.50 = 30,779.10 : x
2. Step 2: Convert to fraction form
   47,766.42/65,947.50 = 30,779.10/x
3. Step 3: Cross multiply
   47,766.42x = 65,947.50 × 30,779.10
4. Step 4: Simplify right side
   47,766.42x = 2,029,804,697.25
5. Step 5: Solve for x
   x = 2,029,804,697.25/47,766.42
6. Step 6: Final answer
   x = 42,494.39