Finding the Fourth Proportional to 70,747.96, 97,619.16 and 42,077.20

Step by Step Solution

1. Step 1: Write the proportion equation
   70,747.96 : 97,619.16 = 42,077.20 : x
2. Step 2: Convert to fraction form
   70,747.96/97,619.16 = 42,077.20/x
3. Step 3: Cross multiply
   70,747.96x = 97,619.16 × 42,077.20
4. Step 4: Simplify right side
   70,747.96x = 4,107,540,919.15
5. Step 5: Solve for x
   x = 4,107,540,919.15/70,747.96
6. Step 6: Final answer
   x = 58,058.79