Finding the Fourth Proportional to 111,200.72, 153,458.52 and 60,900.08

Step by Step Solution

1. Step 1: Write the proportion equation
   111,200.72 : 153,458.52 = 60,900.08 : x
2. Step 2: Convert to fraction form
   111,200.72/153,458.52 = 60,900.08/x
3. Step 3: Cross multiply
   111,200.72x = 153,458.52 × 60,900.08
4. Step 4: Simplify right side
   111,200.72x = 9,345,636,144.68
5. Step 5: Solve for x
   x = 9,345,636,144.68/111,200.72
6. Step 6: Final answer
   x = 84,042.95