Finding the Fourth Proportional to 111,308.08, 166,875.72 and 57,977.68

Step by Step Solution

1. Step 1: Write the proportion equation
   111,308.08 : 166,875.72 = 57,977.68 : x
2. Step 2: Convert to fraction form
   111,308.08/166,875.72 = 57,977.68/x
3. Step 3: Cross multiply
   111,308.08x = 166,875.72 × 57,977.68
4. Step 4: Simplify right side
   111,308.08x = 9,675,067,093.93
5. Step 5: Solve for x
   x = 9,675,067,093.93/111,308.08
6. Step 6: Final answer
   x = 86,921.52