Finding the Fourth Proportional to 65,429.49, 98,166.72 and 27,988.05

Step by Step Solution

1. Step 1: Write the proportion equation
   65,429.49 : 98,166.72 = 27,988.05 : x
2. Step 2: Convert to fraction form
   65,429.49/98,166.72 = 27,988.05/x
3. Step 3: Cross multiply
   65,429.49x = 98,166.72 × 27,988.05
4. Step 4: Simplify right side
   65,429.49x = 2,747,495,067.70
5. Step 5: Solve for x
   x = 2,747,495,067.70/65,429.49
6. Step 6: Final answer
   x = 41,991.69