Finding the Fourth Proportional to 71,389, 98,518.98 and 39,554.92

Step by Step Solution

1. Step 1: Write the proportion equation
   71,389 : 98,518.98 = 39,554.92 : x
2. Step 2: Convert to fraction form
   71,389/98,518.98 = 39,554.92/x
3. Step 3: Cross multiply
   71,389x = 98,518.98 × 39,554.92
4. Step 4: Simplify right side
   71,389x = 3,896,910,372.38
5. Step 5: Solve for x
   x = 3,896,910,372.38/71,389
6. Step 6: Final answer
   x = 54,586.99