Finding the Fourth Proportional to 70,949.20, 97,921.56 and 42,670.48

Step by Step Solution

1. Step 1: Write the proportion equation
   70,949.20 : 97,921.56 = 42,670.48 : x
2. Step 2: Convert to fraction form
   70,949.20/97,921.56 = 42,670.48/x
3. Step 3: Cross multiply
   70,949.20x = 97,921.56 × 42,670.48
4. Step 4: Simplify right side
   70,949.20x = 4,178,359,967.55
5. Step 5: Solve for x
   x = 4,178,359,967.55/70,949.20
6. Step 6: Final answer
   x = 58,892.28