Finding the Fourth Proportional to 70,870.20, 97,801.50 and 39,039.18

Step by Step Solution

1. Step 1: Write the proportion equation
   70,870.20 : 97,801.50 = 39,039.18 : x
2. Step 2: Convert to fraction form
   70,870.20/97,801.50 = 39,039.18/x
3. Step 3: Cross multiply
   70,870.20x = 97,801.50 × 39,039.18
4. Step 4: Simplify right side
   70,870.20x = 3,818,090,362.77
5. Step 5: Solve for x
   x = 3,818,090,362.77/70,870.20
6. Step 6: Final answer
   x = 53,874.41