Finding the Fourth Proportional to 133,411.35, 184,112.04 and 72,980.61

Step by Step Solution

1. Step 1: Write the proportion equation
   133,411.35 : 184,112.04 = 72,980.61 : x
2. Step 2: Convert to fraction form
   133,411.35/184,112.04 = 72,980.61/x
3. Step 3: Cross multiply
   133,411.35x = 184,112.04 × 72,980.61
4. Step 4: Simplify right side
   133,411.35x = 13,436,608,987.54
5. Step 5: Solve for x
   x = 13,436,608,987.54/133,411.35
6. Step 6: Final answer
   x = 100,715.64