Finding the Fourth Proportional to 70,903.02, 97,842.12 and 40,685.42

Step by Step Solution

1. Step 1: Write the proportion equation
   70,903.02 : 97,842.12 = 40,685.42 : x
2. Step 2: Convert to fraction form
   70,903.02/97,842.12 = 40,685.42/x
3. Step 3: Cross multiply
   70,903.02x = 97,842.12 × 40,685.42
4. Step 4: Simplify right side
   70,903.02x = 3,980,747,745.89
5. Step 5: Solve for x
   x = 3,980,747,745.89/70,903.02
6. Step 6: Final answer
   x = 56,143.56