Finding the Fourth Proportional to 71,667.16, 98,901.86 and 39,403.14

Step by Step Solution

1. Step 1: Write the proportion equation
   71,667.16 : 98,901.86 = 39,403.14 : x
2. Step 2: Convert to fraction form
   71,667.16/98,901.86 = 39,403.14/x
3. Step 3: Cross multiply
   71,667.16x = 98,901.86 × 39,403.14
4. Step 4: Simplify right side
   71,667.16x = 3,897,043,835.84
5. Step 5: Solve for x
   x = 3,897,043,835.84/71,667.16
6. Step 6: Final answer
   x = 54,376.98