Finding the Fourth Proportional to 103,993.29, 143,510.76 and 58,680.86

Step by Step Solution

1. Step 1: Write the proportion equation
   103,993.29 : 143,510.76 = 58,680.86 : x
2. Step 2: Convert to fraction form
   103,993.29/143,510.76 = 58,680.86/x
3. Step 3: Cross multiply
   103,993.29x = 143,510.76 × 58,680.86
4. Step 4: Simplify right side
   103,993.29x = 8,421,334,098.50
5. Step 5: Solve for x
   x = 8,421,334,098.50/103,993.29
6. Step 6: Final answer
   x = 80,979.59