Finding the Fourth Proportional to 71,667.34, 98,902.11 and 39,403.32

Step by Step Solution

1. Step 1: Write the proportion equation
   71,667.34 : 98,902.11 = 39,403.32 : x
2. Step 2: Convert to fraction form
   71,667.34/98,902.11 = 39,403.32/x
3. Step 3: Cross multiply
   71,667.34x = 98,902.11 × 39,403.32
4. Step 4: Simplify right side
   71,667.34x = 3,897,071,489.01
5. Step 5: Solve for x
   x = 3,897,071,489.01/71,667.34
6. Step 6: Final answer
   x = 54,377.23