Finding the Fourth Proportional to 154,827.52, 213,669.57 and 91,185.82

Step by Step Solution

1. Step 1: Write the proportion equation
   154,827.52 : 213,669.57 = 91,185.82 : x
2. Step 2: Convert to fraction form
   154,827.52/213,669.57 = 91,185.82/x
3. Step 3: Cross multiply
   154,827.52x = 213,669.57 × 91,185.82
4. Step 4: Simplify right side
   154,827.52x = 19,483,634,949.50
5. Step 5: Solve for x
   x = 19,483,634,949.50/154,827.52
6. Step 6: Final answer
   x = 125,840.90