Finding the Fourth Proportional to 70,150.79, 96,784.05 and 39,928.52

Step by Step Solution

1. Step 1: Write the proportion equation
   70,150.79 : 96,784.05 = 39,928.52 : x
2. Step 2: Convert to fraction form
   70,150.79/96,784.05 = 39,928.52/x
3. Step 3: Cross multiply
   70,150.79x = 96,784.05 × 39,928.52
4. Step 4: Simplify right side
   70,150.79x = 3,864,443,876.11
5. Step 5: Solve for x
   x = 3,864,443,876.11/70,150.79
6. Step 6: Final answer
   x = 55,087.67