Finding the Fourth Proportional to 111,131.12, 166,644.84 and 64,397.36

Step by Step Solution

1. Step 1: Write the proportion equation
   111,131.12 : 166,644.84 = 64,397.36 : x
2. Step 2: Convert to fraction form
   111,131.12/166,644.84 = 64,397.36/x
3. Step 3: Cross multiply
   111,131.12x = 166,644.84 × 64,397.36
4. Step 4: Simplify right side
   111,131.12x = 10,731,487,753.62
5. Step 5: Solve for x
   x = 10,731,487,753.62/111,131.12
6. Step 6: Final answer
   x = 96,566.00