Finding the Fourth Proportional to 133,409.72, 184,105.34 and 72,980.34

Step by Step Solution

1. Step 1: Write the proportion equation
   133,409.72 : 184,105.34 = 72,980.34 : x
2. Step 2: Convert to fraction form
   133,409.72/184,105.34 = 72,980.34/x
3. Step 3: Cross multiply
   133,409.72x = 184,105.34 × 72,980.34
4. Step 4: Simplify right side
   133,409.72x = 13,436,070,309.02
5. Step 5: Solve for x
   x = 13,436,070,309.02/133,409.72
6. Step 6: Final answer
   x = 100,712.83