Finding the Fourth Proportional to 111,907.67, 154,434.56 and 60,921.86

Step by Step Solution

1. Step 1: Write the proportion equation
   111,907.67 : 154,434.56 = 60,921.86 : x
2. Step 2: Convert to fraction form
   111,907.67/154,434.56 = 60,921.86/x
3. Step 3: Cross multiply
   111,907.67x = 154,434.56 × 60,921.86
4. Step 4: Simplify right side
   111,907.67x = 9,408,440,643.48
5. Step 5: Solve for x
   x = 9,408,440,643.48/111,907.67
6. Step 6: Final answer
   x = 84,073.24