Finding the Fourth Proportional to 114,557.94, 171,962.62 and 91,016.81

Step by Step Solution

1. Step 1: Write the proportion equation
   114,557.94 : 171,962.62 = 91,016.81 : x
2. Step 2: Convert to fraction form
   114,557.94/171,962.62 = 91,016.81/x
3. Step 3: Cross multiply
   114,557.94x = 171,962.62 × 91,016.81
4. Step 4: Simplify right side
   114,557.94x = 15,651,489,111.64
5. Step 5: Solve for x
   x = 15,651,489,111.64/114,557.94
6. Step 6: Final answer
   x = 136,625.09