Finding the Fourth Proportional to 111,155.56, 153,392.34 and 68,120.26

Step by Step Solution

1. Step 1: Write the proportion equation
   111,155.56 : 153,392.34 = 68,120.26 : x
2. Step 2: Convert to fraction form
   111,155.56/153,392.34 = 68,120.26/x
3. Step 3: Cross multiply
   111,155.56x = 153,392.34 × 68,120.26
4. Step 4: Simplify right side
   111,155.56x = 10,449,126,082.81
5. Step 5: Solve for x
   x = 10,449,126,082.81/111,155.56
6. Step 6: Final answer
   x = 94,004.53