Finding the Fourth Proportional to 65,846.92, 98,775.42 and 28,407.88

Step by Step Solution

1. Step 1: Write the proportion equation
   65,846.92 : 98,775.42 = 28,407.88 : x
2. Step 2: Convert to fraction form
   65,846.92/98,775.42 = 28,407.88/x
3. Step 3: Cross multiply
   65,846.92x = 98,775.42 × 28,407.88
4. Step 4: Simplify right side
   65,846.92x = 2,806,000,278.31
5. Step 5: Solve for x
   x = 2,806,000,278.31/65,846.92
6. Step 6: Final answer
   x = 42,613.99