Finding the Fourth Proportional to 112,766.22, 155,615.31 and 65,021.58

Step by Step Solution

1. Step 1: Write the proportion equation
   112,766.22 : 155,615.31 = 65,021.58 : x
2. Step 2: Convert to fraction form
   112,766.22/155,615.31 = 65,021.58/x
3. Step 3: Cross multiply
   112,766.22x = 155,615.31 × 65,021.58
4. Step 4: Simplify right side
   112,766.22x = 10,118,353,328.39
5. Step 5: Solve for x
   x = 10,118,353,328.39/112,766.22
6. Step 6: Final answer
   x = 89,728.58