Finding the Fourth Proportional to 71,481, 98,643.86 and 41,678.76

Step by Step Solution

1. Step 1: Write the proportion equation
   71,481 : 98,643.86 = 41,678.76 : x
2. Step 2: Convert to fraction form
   71,481/98,643.86 = 41,678.76/x
3. Step 3: Cross multiply
   71,481x = 98,643.86 × 41,678.76
4. Step 4: Simplify right side
   71,481x = 4,111,353,766.41
5. Step 5: Solve for x
   x = 4,111,353,766.41/71,481
6. Step 6: Final answer
   x = 57,516.74