Finding the Fourth Proportional to 133,822.72, 184,211.76 and 115,665.10

Step by Step Solution

1. Step 1: Write the proportion equation
   133,822.72 : 184,211.76 = 115,665.10 : x
2. Step 2: Convert to fraction form
   133,822.72/184,211.76 = 115,665.10/x
3. Step 3: Cross multiply
   133,822.72x = 184,211.76 × 115,665.10
4. Step 4: Simplify right side
   133,822.72x = 21,306,871,641.58
5. Step 5: Solve for x
   x = 21,306,871,641.58/133,822.72
6. Step 6: Final answer
   x = 159,217.15