Finding the Fourth Proportional to 111,642.49, 154,068.39 and 60,656.23

Step by Step Solution

1. Step 1: Write the proportion equation
   111,642.49 : 154,068.39 = 60,656.23 : x
2. Step 2: Convert to fraction form
   111,642.49/154,068.39 = 60,656.23/x
3. Step 3: Cross multiply
   111,642.49x = 154,068.39 × 60,656.23
4. Step 4: Simplify right side
   111,642.49x = 9,345,208,084.74
5. Step 5: Solve for x
   x = 9,345,208,084.74/111,642.49
6. Step 6: Final answer
   x = 83,706.55