Finding the Fourth Proportional to 111,796.80, 154,271.16 and 61,499.04

Step by Step Solution

1. Step 1: Write the proportion equation
   111,796.80 : 154,271.16 = 61,499.04 : x
2. Step 2: Convert to fraction form
   111,796.80/154,271.16 = 61,499.04/x
3. Step 3: Cross multiply
   111,796.80x = 154,271.16 × 61,499.04
4. Step 4: Simplify right side
   111,796.80x = 9,487,528,239.69
5. Step 5: Solve for x
   x = 9,487,528,239.69/111,796.80
6. Step 6: Final answer
   x = 84,864.04