Finding the Fourth Proportional to 70,103.72, 96,741.84 and 39,888.38

Step by Step Solution

1. Step 1: Write the proportion equation
   70,103.72 : 96,741.84 = 39,888.38 : x
2. Step 2: Convert to fraction form
   70,103.72/96,741.84 = 39,888.38/x
3. Step 3: Cross multiply
   70,103.72x = 96,741.84 × 39,888.38
4. Step 4: Simplify right side
   70,103.72x = 3,858,875,275.82
5. Step 5: Solve for x
   x = 3,858,875,275.82/70,103.72
6. Step 6: Final answer
   x = 55,045.23