Finding the Fourth Proportional to 111,568.56, 153,968.16 and 61,267.56

Step by Step Solution

1. Step 1: Write the proportion equation
   111,568.56 : 153,968.16 = 61,267.56 : x
2. Step 2: Convert to fraction form
   111,568.56/153,968.16 = 61,267.56/x
3. Step 3: Cross multiply
   111,568.56x = 153,968.16 × 61,267.56
4. Step 4: Simplify right side
   111,568.56x = 9,433,253,480.89
5. Step 5: Solve for x
   x = 9,433,253,480.89/111,568.56
6. Step 6: Final answer
   x = 84,551.18