Finding the Fourth Proportional to 71,072.31, 98,035.58 and 42,372.03

Step by Step Solution

1. Step 1: Write the proportion equation
   71,072.31 : 98,035.58 = 42,372.03 : x
2. Step 2: Convert to fraction form
   71,072.31/98,035.58 = 42,372.03/x
3. Step 3: Cross multiply
   71,072.31x = 98,035.58 × 42,372.03
4. Step 4: Simplify right side
   71,072.31x = 4,153,966,536.83
5. Step 5: Solve for x
   x = 4,153,966,536.83/71,072.31
6. Step 6: Final answer
   x = 58,447.05