Finding the Fourth Proportional to 359,667.72, 539,501.40 and 106,947.12

Step by Step Solution

1. Step 1: Write the proportion equation
   359,667.72 : 539,501.40 = 106,947.12 : x
2. Step 2: Convert to fraction form
   359,667.72/539,501.40 = 106,947.12/x
3. Step 3: Cross multiply
   359,667.72x = 539,501.40 × 106,947.12
4. Step 4: Simplify right side
   359,667.72x = 57,698,120,965.97
5. Step 5: Solve for x
   x = 57,698,120,965.97/359,667.72
6. Step 6: Final answer
   x = 160,420.63