Finding the Fourth Proportional to 70,881, 97,829.94 and 40,686.73

Step by Step Solution

1. Step 1: Write the proportion equation
   70,881 : 97,829.94 = 40,686.73 : x
2. Step 2: Convert to fraction form
   70,881/97,829.94 = 40,686.73/x
3. Step 3: Cross multiply
   70,881x = 97,829.94 × 40,686.73
4. Step 4: Simplify right side
   70,881x = 3,980,380,354.70
5. Step 5: Solve for x
   x = 3,980,380,354.70/70,881
6. Step 6: Final answer
   x = 56,155.82