Finding the Fourth Proportional to 111,139.08, 166,801.86 and 104,132.76

Step by Step Solution

1. Step 1: Write the proportion equation
   111,139.08 : 166,801.86 = 104,132.76 : x
2. Step 2: Convert to fraction form
   111,139.08/166,801.86 = 104,132.76/x
3. Step 3: Cross multiply
   111,139.08x = 166,801.86 × 104,132.76
4. Step 4: Simplify right side
   111,139.08x = 17,369,538,054.93
5. Step 5: Solve for x
   x = 17,369,538,054.93/111,139.08
6. Step 6: Final answer
   x = 156,286.50