Finding the Fourth Proportional to 111,801.42, 154,288.35 and 61,500.42

Step by Step Solution

1. Step 1: Write the proportion equation
   111,801.42 : 154,288.35 = 61,500.42 : x
2. Step 2: Convert to fraction form
   111,801.42/154,288.35 = 61,500.42/x
3. Step 3: Cross multiply
   111,801.42x = 154,288.35 × 61,500.42
4. Step 4: Simplify right side
   111,801.42x = 9,488,798,326.11
5. Step 5: Solve for x
   x = 9,488,798,326.11/111,801.42
6. Step 6: Final answer
   x = 84,871.89