Finding the Fourth Proportional to 111,900.91, 154,418.43 and 60,913.72

Step by Step Solution

1. Step 1: Write the proportion equation
   111,900.91 : 154,418.43 = 60,913.72 : x
2. Step 2: Convert to fraction form
   111,900.91/154,418.43 = 60,913.72/x
3. Step 3: Cross multiply
   111,900.91x = 154,418.43 × 60,913.72
4. Step 4: Simplify right side
   111,900.91x = 9,406,201,007.86
5. Step 5: Solve for x
   x = 9,406,201,007.86/111,900.91
6. Step 6: Final answer
   x = 84,058.31