Finding the Fourth Proportional to 111,175.74, 153,412.79 and 65,845.71

Step by Step Solution

1. Step 1: Write the proportion equation
   111,175.74 : 153,412.79 = 65,845.71 : x
2. Step 2: Convert to fraction form
   111,175.74/153,412.79 = 65,845.71/x
3. Step 3: Cross multiply
   111,175.74x = 153,412.79 × 65,845.71
4. Step 4: Simplify right side
   111,175.74x = 10,101,573,751.40
5. Step 5: Solve for x
   x = 10,101,573,751.40/111,175.74
6. Step 6: Final answer
   x = 90,861.31