Finding the Fourth Proportional to 112,764.96, 155,615.31 and 65,017.89

Step by Step Solution

1. Step 1: Write the proportion equation
   112,764.96 : 155,615.31 = 65,017.89 : x
2. Step 2: Convert to fraction form
   112,764.96/155,615.31 = 65,017.89/x
3. Step 3: Cross multiply
   112,764.96x = 155,615.31 × 65,017.89
4. Step 4: Simplify right side
   112,764.96x = 10,117,779,107.90
5. Step 5: Solve for x
   x = 10,117,779,107.90/112,764.96
6. Step 6: Final answer
   x = 89,724.50