Finding the Fourth Proportional to 111,953.19, 154,496.40 and 60,966.15

Step by Step Solution

1. Step 1: Write the proportion equation
   111,953.19 : 154,496.40 = 60,966.15 : x
2. Step 2: Convert to fraction form
   111,953.19/154,496.40 = 60,966.15/x
3. Step 3: Cross multiply
   111,953.19x = 154,496.40 × 60,966.15
4. Step 4: Simplify right side
   111,953.19x = 9,419,050,696.86
5. Step 5: Solve for x
   x = 9,419,050,696.86/111,953.19
6. Step 6: Final answer
   x = 84,133.83