Finding the Fourth Proportional to 111,057.61, 166,412.06 and 75,535.87

Step by Step Solution

1. Step 1: Write the proportion equation
   111,057.61 : 166,412.06 = 75,535.87 : x
2. Step 2: Convert to fraction form
   111,057.61/166,412.06 = 75,535.87/x
3. Step 3: Cross multiply
   111,057.61x = 166,412.06 × 75,535.87
4. Step 4: Simplify right side
   111,057.61x = 12,570,079,730.59
5. Step 5: Solve for x
   x = 12,570,079,730.59/111,057.61
6. Step 6: Final answer
   x = 113,185.22