Finding the Fourth Proportional to 71,505.72, 98,676.63 and 39,674.07

Step by Step Solution

1. Step 1: Write the proportion equation
   71,505.72 : 98,676.63 = 39,674.07 : x
2. Step 2: Convert to fraction form
   71,505.72/98,676.63 = 39,674.07/x
3. Step 3: Cross multiply
   71,505.72x = 98,676.63 × 39,674.07
4. Step 4: Simplify right side
   71,505.72x = 3,914,903,525.98
5. Step 5: Solve for x
   x = 3,914,903,525.98/71,505.72
6. Step 6: Final answer
   x = 54,749.52