Finding the Fourth Proportional to 143,003.89, 197,345.39 and 79,341.54

Step by Step Solution

1. Step 1: Write the proportion equation
   143,003.89 : 197,345.39 = 79,341.54 : x
2. Step 2: Convert to fraction form
   143,003.89/197,345.39 = 79,341.54/x
3. Step 3: Cross multiply
   143,003.89x = 197,345.39 × 79,341.54
4. Step 4: Simplify right side
   143,003.89x = 15,657,687,154.50
5. Step 5: Solve for x
   x = 15,657,687,154.50/143,003.89
6. Step 6: Final answer
   x = 109,491.34