Finding the Fourth Proportional to 148,885.89, 205,379.36 and 91,485.34

Step by Step Solution

1. Step 1: Write the proportion equation
   148,885.89 : 205,379.36 = 91,485.34 : x
2. Step 2: Convert to fraction form
   148,885.89/205,379.36 = 91,485.34/x
3. Step 3: Cross multiply
   148,885.89x = 205,379.36 × 91,485.34
4. Step 4: Simplify right side
   148,885.89x = 18,789,200,578.58
5. Step 5: Solve for x
   x = 18,789,200,578.58/148,885.89
6. Step 6: Final answer
   x = 126,198.67