Finding the Fourth Proportional to 151,279.89, 208,794.27 and 87,617.69

Step by Step Solution

1. Step 1: Write the proportion equation
   151,279.89 : 208,794.27 = 87,617.69 : x
2. Step 2: Convert to fraction form
   151,279.89/208,794.27 = 87,617.69/x
3. Step 3: Cross multiply
   151,279.89x = 208,794.27 × 87,617.69
4. Step 4: Simplify right side
   151,279.89x = 18,294,071,622.64
5. Step 5: Solve for x
   x = 18,294,071,622.64/151,279.89
6. Step 6: Final answer
   x = 120,928.64