Finding the Fourth Proportional to 110,913.23, 153,065.77 and 65,617.72

Step by Step Solution

1. Step 1: Write the proportion equation
   110,913.23 : 153,065.77 = 65,617.72 : x
2. Step 2: Convert to fraction form
   110,913.23/153,065.77 = 65,617.72/x
3. Step 3: Cross multiply
   110,913.23x = 153,065.77 × 65,617.72
4. Step 4: Simplify right side
   110,913.23x = 10,043,826,290.74
5. Step 5: Solve for x
   x = 10,043,826,290.74/110,913.23
6. Step 6: Final answer
   x = 90,555.71