Finding the Fourth Proportional to 144,916.82, 199,987.25 and 87,548.16

Step by Step Solution

1. Step 1: Write the proportion equation
   144,916.82 : 199,987.25 = 87,548.16 : x
2. Step 2: Convert to fraction form
   144,916.82/199,987.25 = 87,548.16/x
3. Step 3: Cross multiply
   144,916.82x = 199,987.25 × 87,548.16
4. Step 4: Simplify right side
   144,916.82x = 17,508,515,323.22
5. Step 5: Solve for x
   x = 17,508,515,323.22/144,916.82
6. Step 6: Final answer
   x = 120,817.69