Finding the Fourth Proportional to 70,801.80, 97,673.76 and 42,458.28

Step by Step Solution

1. Step 1: Write the proportion equation
   70,801.80 : 97,673.76 = 42,458.28 : x
2. Step 2: Convert to fraction form
   70,801.80/97,673.76 = 42,458.28/x
3. Step 3: Cross multiply
   70,801.80x = 97,673.76 × 42,458.28
4. Step 4: Simplify right side
   70,801.80x = 4,147,059,850.73
5. Step 5: Solve for x
   x = 4,147,059,850.73/70,801.80
6. Step 6: Final answer
   x = 58,572.80