Finding the Fourth Proportional to 111,323.88, 153,633.24 and 66,028.68

Step by Step Solution

1. Step 1: Write the proportion equation
   111,323.88 : 153,633.24 = 66,028.68 : x
2. Step 2: Convert to fraction form
   111,323.88/153,633.24 = 66,028.68/x
3. Step 3: Cross multiply
   111,323.88x = 153,633.24 × 66,028.68
4. Step 4: Simplify right side
   111,323.88x = 10,144,200,041.32
5. Step 5: Solve for x
   x = 10,144,200,041.32/111,323.88
6. Step 6: Final answer
   x = 91,123.31