Finding the Fourth Proportional to 111,839.68, 154,339.20 and 64,094.08

Step by Step Solution

1. Step 1: Write the proportion equation
   111,839.68 : 154,339.20 = 64,094.08 : x
2. Step 2: Convert to fraction form
   111,839.68/154,339.20 = 64,094.08/x
3. Step 3: Cross multiply
   111,839.68x = 154,339.20 × 64,094.08
4. Step 4: Simplify right side
   111,839.68x = 9,892,229,031.94
5. Step 5: Solve for x
   x = 9,892,229,031.94/111,839.68
6. Step 6: Final answer
   x = 88,450.08