Finding the Fourth Proportional to 70,905.80, 97,849.54 and 39,074.72

Step by Step Solution

1. Step 1: Write the proportion equation
   70,905.80 : 97,849.54 = 39,074.72 : x
2. Step 2: Convert to fraction form
   70,905.80/97,849.54 = 39,074.72/x
3. Step 3: Cross multiply
   70,905.80x = 97,849.54 × 39,074.72
4. Step 4: Simplify right side
   70,905.80x = 3,823,443,377.63
5. Step 5: Solve for x
   x = 3,823,443,377.63/70,905.80
6. Step 6: Final answer
   x = 53,922.86