Finding the Fourth Proportional to 71,018.01, 98,004.74 and 39,186.89

Step by Step Solution

1. Step 1: Write the proportion equation
   71,018.01 : 98,004.74 = 39,186.89 : x
2. Step 2: Convert to fraction form
   71,018.01/98,004.74 = 39,186.89/x
3. Step 3: Cross multiply
   71,018.01x = 98,004.74 × 39,186.89
4. Step 4: Simplify right side
   71,018.01x = 3,840,500,475.83
5. Step 5: Solve for x
   x = 3,840,500,475.83/71,018.01
6. Step 6: Final answer
   x = 54,077.84