Finding the Fourth Proportional to 133,298.82, 183,951.90 and 72,869.43

Step by Step Solution

1. Step 1: Write the proportion equation
   133,298.82 : 183,951.90 = 72,869.43 : x
2. Step 2: Convert to fraction form
   133,298.82/183,951.90 = 72,869.43/x
3. Step 3: Cross multiply
   133,298.82x = 183,951.90 × 72,869.43
4. Step 4: Simplify right side
   133,298.82x = 13,404,470,100.42
5. Step 5: Solve for x
   x = 13,404,470,100.42/133,298.82
6. Step 6: Final answer
   x = 100,559.56