Finding the Fourth Proportional to 122,715.27, 184,042.53 and 87,072.84

Step by Step Solution

1. Step 1: Write the proportion equation
   122,715.27 : 184,042.53 = 87,072.84 : x
2. Step 2: Convert to fraction form
   122,715.27/184,042.53 = 87,072.84/x
3. Step 3: Cross multiply
   122,715.27x = 184,042.53 × 87,072.84
4. Step 4: Simplify right side
   122,715.27x = 16,025,105,767.89
5. Step 5: Solve for x
   x = 16,025,105,767.89/122,715.27
6. Step 6: Final answer
   x = 130,587.71