Finding the Fourth Proportional to 111,564.27, 153,914.04 and 71,267.58

Step by Step Solution

1. Step 1: Write the proportion equation
   111,564.27 : 153,914.04 = 71,267.58 : x
2. Step 2: Convert to fraction form
   111,564.27/153,914.04 = 71,267.58/x
3. Step 3: Cross multiply
   111,564.27x = 153,914.04 × 71,267.58
4. Step 4: Simplify right side
   111,564.27x = 10,969,081,158.82
5. Step 5: Solve for x
   x = 10,969,081,158.82/111,564.27
6. Step 6: Final answer
   x = 98,320.74