Finding the Fourth Proportional to 70,141.50, 96,782.43 and 39,925.05

Step by Step Solution

1. Step 1: Write the proportion equation
   70,141.50 : 96,782.43 = 39,925.05 : x
2. Step 2: Convert to fraction form
   70,141.50/96,782.43 = 39,925.05/x
3. Step 3: Cross multiply
   70,141.50x = 96,782.43 × 39,925.05
4. Step 4: Simplify right side
   70,141.50x = 3,864,043,356.87
5. Step 5: Solve for x
   x = 3,864,043,356.87/70,141.50
6. Step 6: Final answer
   x = 55,089.26