Finding the Fourth Proportional to 111,867.06, 154,376.55 and 61,566.06

Step by Step Solution

1. Step 1: Write the proportion equation
   111,867.06 : 154,376.55 = 61,566.06 : x
2. Step 2: Convert to fraction form
   111,867.06/154,376.55 = 61,566.06/x
3. Step 3: Cross multiply
   111,867.06x = 154,376.55 × 61,566.06
4. Step 4: Simplify right side
   111,867.06x = 9,504,355,939.89
5. Step 5: Solve for x
   x = 9,504,355,939.89/111,867.06
6. Step 6: Final answer
   x = 84,961.17