Finding the Fourth Proportional to 111,960.96, 154,499.01 and 61,659.96

Step by Step Solution

1. Step 1: Write the proportion equation
   111,960.96 : 154,499.01 = 61,659.96 : x
2. Step 2: Convert to fraction form
   111,960.96/154,499.01 = 61,659.96/x
3. Step 3: Cross multiply
   111,960.96x = 154,499.01 × 61,659.96
4. Step 4: Simplify right side
   111,960.96x = 9,526,402,776.64
5. Step 5: Solve for x
   x = 9,526,402,776.64/111,960.96
6. Step 6: Final answer
   x = 85,086.83