Finding the Fourth Proportional to 103,635, 143,016.30 and 58,931.64

Step by Step Solution

1. Step 1: Write the proportion equation
   103,635 : 143,016.30 = 58,931.64 : x
2. Step 2: Convert to fraction form
   103,635/143,016.30 = 58,931.64/x
3. Step 3: Cross multiply
   103,635x = 143,016.30 × 58,931.64
4. Step 4: Simplify right side
   103,635x = 8,428,185,105.73
5. Step 5: Solve for x
   x = 8,428,185,105.73/103,635
6. Step 6: Final answer
   x = 81,325.66