Finding the Fourth Proportional to 70,978.84, 97,947.18 and 40,743.16

Step by Step Solution

1. Step 1: Write the proportion equation
   70,978.84 : 97,947.18 = 40,743.16 : x
2. Step 2: Convert to fraction form
   70,978.84/97,947.18 = 40,743.16/x
3. Step 3: Cross multiply
   70,978.84x = 97,947.18 × 40,743.16
4. Step 4: Simplify right side
   70,978.84x = 3,990,677,626.29
5. Step 5: Solve for x
   x = 3,990,677,626.29/70,978.84
6. Step 6: Final answer
   x = 56,223.48