Finding the Fourth Proportional to 70,478.72, 97,260.56 and 38,648.16

Step by Step Solution

1. Step 1: Write the proportion equation
   70,478.72 : 97,260.56 = 38,648.16 : x
2. Step 2: Convert to fraction form
   70,478.72/97,260.56 = 38,648.16/x
3. Step 3: Cross multiply
   70,478.72x = 97,260.56 × 38,648.16
4. Step 4: Simplify right side
   70,478.72x = 3,758,941,684.57
5. Step 5: Solve for x
   x = 3,758,941,684.57/70,478.72
6. Step 6: Final answer
   x = 53,334.42