Finding the Fourth Proportional to 111,141.28, 153,333.66 and 70,845.76

Step by Step Solution

1. Step 1: Write the proportion equation
   111,141.28 : 153,333.66 = 70,845.76 : x
2. Step 2: Convert to fraction form
   111,141.28/153,333.66 = 70,845.76/x
3. Step 3: Cross multiply
   111,141.28x = 153,333.66 × 70,845.76
4. Step 4: Simplify right side
   111,141.28x = 10,863,039,676.28
5. Step 5: Solve for x
   x = 10,863,039,676.28/111,141.28
6. Step 6: Final answer
   x = 97,740.82