Finding the Fourth Proportional to 111,853.18, 154,361.01 and 64,115.56

Step by Step Solution

1. Step 1: Write the proportion equation
   111,853.18 : 154,361.01 = 64,115.56 : x
2. Step 2: Convert to fraction form
   111,853.18/154,361.01 = 64,115.56/x
3. Step 3: Cross multiply
   111,853.18x = 154,361.01 × 64,115.56
4. Step 4: Simplify right side
   111,853.18x = 9,896,942,598.32
5. Step 5: Solve for x
   x = 9,896,942,598.32/111,853.18
6. Step 6: Final answer
   x = 88,481.55