Finding the Fourth Proportional to 111,285.39, 153,581.37 and 62,870.51

Step by Step Solution

1. Step 1: Write the proportion equation
   111,285.39 : 153,581.37 = 62,870.51 : x
2. Step 2: Convert to fraction form
   111,285.39/153,581.37 = 62,870.51/x
3. Step 3: Cross multiply
   111,285.39x = 153,581.37 × 62,870.51
4. Step 4: Simplify right side
   111,285.39x = 9,655,739,206.59
5. Step 5: Solve for x
   x = 9,655,739,206.59/111,285.39
6. Step 6: Final answer
   x = 86,765.56