Finding the Fourth Proportional to 70,196.82, 96,877.35 and 39,991.59

Step by Step Solution

1. Step 1: Write the proportion equation
   70,196.82 : 96,877.35 = 39,991.59 : x
2. Step 2: Convert to fraction form
   70,196.82/96,877.35 = 39,991.59/x
3. Step 3: Cross multiply
   70,196.82x = 96,877.35 × 39,991.59
4. Step 4: Simplify right side
   70,196.82x = 3,874,279,261.49
5. Step 5: Solve for x
   x = 3,874,279,261.49/70,196.82
6. Step 6: Final answer
   x = 55,191.66