Finding the Fourth Proportional to 103,628.50, 143,007.33 and 58,916.50

Step by Step Solution

1. Step 1: Write the proportion equation
   103,628.50 : 143,007.33 = 58,916.50 : x
2. Step 2: Convert to fraction form
   103,628.50/143,007.33 = 58,916.50/x
3. Step 3: Cross multiply
   103,628.50x = 143,007.33 × 58,916.50
4. Step 4: Simplify right side
   103,628.50x = 8,425,491,357.95
5. Step 5: Solve for x
   x = 8,425,491,357.95/103,628.50
6. Step 6: Final answer
   x = 81,304.77