Finding the Fourth Proportional to 71,667.19, 98,901.22 and 39,402.35

Step by Step Solution

1. Step 1: Write the proportion equation
   71,667.19 : 98,901.22 = 39,402.35 : x
2. Step 2: Convert to fraction form
   71,667.19/98,901.22 = 39,402.35/x
3. Step 3: Cross multiply
   71,667.19x = 98,901.22 × 39,402.35
4. Step 4: Simplify right side
   71,667.19x = 3,896,940,485.87
5. Step 5: Solve for x
   x = 3,896,940,485.87/71,667.19
6. Step 6: Final answer
   x = 54,375.52