Finding the Fourth Proportional to 111,968.82, 154,531.89 and 64,227.06

Step by Step Solution

1. Step 1: Write the proportion equation
   111,968.82 : 154,531.89 = 64,227.06 : x
2. Step 2: Convert to fraction form
   111,968.82/154,531.89 = 64,227.06/x
3. Step 3: Cross multiply
   111,968.82x = 154,531.89 × 64,227.06
4. Step 4: Simplify right side
   111,968.82x = 9,925,128,970.94
5. Step 5: Solve for x
   x = 9,925,128,970.94/111,968.82
6. Step 6: Final answer
   x = 88,641.90