Finding the Fourth Proportional to 80,420.65, 110,978.35 and 46,427.98

Step by Step Solution

1. Step 1: Write the proportion equation
   80,420.65 : 110,978.35 = 46,427.98 : x
2. Step 2: Convert to fraction form
   80,420.65/110,978.35 = 46,427.98/x
3. Step 3: Cross multiply
   80,420.65x = 110,978.35 × 46,427.98
4. Step 4: Simplify right side
   80,420.65x = 5,152,500,614.23
5. Step 5: Solve for x
   x = 5,152,500,614.23/80,420.65
6. Step 6: Final answer
   x = 64,069.37