Finding the Fourth Proportional to 158,709.20, 238,081.86 and 57,554.91

Step by Step Solution

1. Step 1: Write the proportion equation
   158,709.20 : 238,081.86 = 57,554.91 : x
2. Step 2: Convert to fraction form
   158,709.20/238,081.86 = 57,554.91/x
3. Step 3: Cross multiply
   158,709.20x = 238,081.86 × 57,554.91
4. Step 4: Simplify right side
   158,709.20x = 13,702,780,024.93
5. Step 5: Solve for x
   x = 13,702,780,024.93/158,709.20
6. Step 6: Final answer
   x = 86,338.92