Finding the Fourth Proportional to 192,559.00, 288,980.37 and 91,357.42

Step by Step Solution

1. Step 1: Write the proportion equation
   192,559.00 : 288,980.37 = 91,357.42 : x
2. Step 2: Convert to fraction form
   192,559.00/288,980.37 = 91,357.42/x
3. Step 3: Cross multiply
   192,559.00x = 288,980.37 × 91,357.42
4. Step 4: Simplify right side
   192,559.00x = 26,400,499,817.34
5. Step 5: Solve for x
   x = 26,400,499,817.34/192,559.00
6. Step 6: Final answer
   x = 137,103.44