Finding the Fourth Proportional to 143,331.07, 197,803.89 and 79,667.50

Step by Step Solution

1. Step 1: Write the proportion equation
   143,331.07 : 197,803.89 = 79,667.50 : x
2. Step 2: Convert to fraction form
   143,331.07/197,803.89 = 79,667.50/x
3. Step 3: Cross multiply
   143,331.07x = 197,803.89 × 79,667.50
4. Step 4: Simplify right side
   143,331.07x = 15,758,541,406.58
5. Step 5: Solve for x
   x = 15,758,541,406.58/143,331.07
6. Step 6: Final answer
   x = 109,945.05