Finding the Fourth Proportional to 111,323, 153,626.28 and 66,611

Step by Step Solution

1. Step 1: Write the proportion equation
   111,323 : 153,626.28 = 66,611 : x
2. Step 2: Convert to fraction form
   111,323/153,626.28 = 66,611/x
3. Step 3: Cross multiply
   111,323x = 153,626.28 × 66,611
4. Step 4: Simplify right side
   111,323x = 10,233,200,137.08
5. Step 5: Solve for x
   x = 10,233,200,137.08/111,323
6. Step 6: Final answer
   x = 91,923.50