Finding the Fourth Proportional to 155,664.72, 214,828.20 and 88,596.72

Step by Step Solution

1. Step 1: Write the proportion equation
   155,664.72 : 214,828.20 = 88,596.72 : x
2. Step 2: Convert to fraction form
   155,664.72/214,828.20 = 88,596.72/x
3. Step 3: Cross multiply
   155,664.72x = 214,828.20 × 88,596.72
4. Step 4: Simplify right side
   155,664.72x = 19,033,073,883.50
5. Step 5: Solve for x
   x = 19,033,073,883.50/155,664.72
6. Step 6: Final answer
   x = 122,269.67