Finding the Fourth Proportional to 112,321.83, 155,003.18 and 62,019.75

Step by Step Solution

1. Step 1: Write the proportion equation
   112,321.83 : 155,003.18 = 62,019.75 : x
2. Step 2: Convert to fraction form
   112,321.83/155,003.18 = 62,019.75/x
3. Step 3: Cross multiply
   112,321.83x = 155,003.18 × 62,019.75
4. Step 4: Simplify right side
   112,321.83x = 9,613,258,162.71
5. Step 5: Solve for x
   x = 9,613,258,162.71/112,321.83
6. Step 6: Final answer
   x = 85,586.73