Finding the Fourth Proportional to 111,523.50, 153,904.86 and 61,222.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,523.50 : 153,904.86 = 61,222.50 : x
2. Step 2: Convert to fraction form
   111,523.50/153,904.86 = 61,222.50/x
3. Step 3: Cross multiply
   111,523.50x = 153,904.86 × 61,222.50
4. Step 4: Simplify right side
   111,523.50x = 9,422,440,291.35
5. Step 5: Solve for x
   x = 9,422,440,291.35/111,523.50
6. Step 6: Final answer
   x = 84,488.38