Finding the Fourth Proportional to 70,609.14, 97,442.30 and 38,778.72

Step by Step Solution

1. Step 1: Write the proportion equation
   70,609.14 : 97,442.30 = 38,778.72 : x
2. Step 2: Convert to fraction form
   70,609.14/97,442.30 = 38,778.72/x
3. Step 3: Cross multiply
   70,609.14x = 97,442.30 × 38,778.72
4. Step 4: Simplify right side
   70,609.14x = 3,778,687,667.86
5. Step 5: Solve for x
   x = 3,778,687,667.86/70,609.14
6. Step 6: Final answer
   x = 53,515.56