Finding the Fourth Proportional to 111,836.49, 154,343.25 and 64,094.28

Step by Step Solution

1. Step 1: Write the proportion equation
   111,836.49 : 154,343.25 = 64,094.28 : x
2. Step 2: Convert to fraction form
   111,836.49/154,343.25 = 64,094.28/x
3. Step 3: Cross multiply
   111,836.49x = 154,343.25 × 64,094.28
4. Step 4: Simplify right side
   111,836.49x = 9,892,519,481.61
5. Step 5: Solve for x
   x = 9,892,519,481.61/111,836.49
6. Step 6: Final answer
   x = 88,455.20