Finding the Fourth Proportional to 111,967.92, 154,515.89 and 60,980.88

Step by Step Solution

1. Step 1: Write the proportion equation
   111,967.92 : 154,515.89 = 60,980.88 : x
2. Step 2: Convert to fraction form
   111,967.92/154,515.89 = 60,980.88/x
3. Step 3: Cross multiply
   111,967.92x = 154,515.89 × 60,980.88
4. Step 4: Simplify right side
   111,967.92x = 9,422,514,946.18
5. Step 5: Solve for x
   x = 9,422,514,946.18/111,967.92
6. Step 6: Final answer
   x = 84,153.70