Finding the Fourth Proportional to 103,983.14, 143,496.76 and 58,670.72

Step by Step Solution

1. Step 1: Write the proportion equation
   103,983.14 : 143,496.76 = 58,670.72 : x
2. Step 2: Convert to fraction form
   103,983.14/143,496.76 = 58,670.72/x
3. Step 3: Cross multiply
   103,983.14x = 143,496.76 × 58,670.72
4. Step 4: Simplify right side
   103,983.14x = 8,419,057,767.78
5. Step 5: Solve for x
   x = 8,419,057,767.78/103,983.14
6. Step 6: Final answer
   x = 80,965.61