Finding the Fourth Proportional to 111,007.32, 166,444.08 and 43,458.78

Step by Step Solution

1. Step 1: Write the proportion equation
   111,007.32 : 166,444.08 = 43,458.78 : x
2. Step 2: Convert to fraction form
   111,007.32/166,444.08 = 43,458.78/x
3. Step 3: Cross multiply
   111,007.32x = 166,444.08 × 43,458.78
4. Step 4: Simplify right side
   111,007.32x = 7,233,456,655.02
5. Step 5: Solve for x
   x = 7,233,456,655.02/111,007.32
6. Step 6: Final answer
   x = 65,161.98