Finding the Fourth Proportional to 356,976,667.42, 535,183,385.58 and 225,541,906.56

Step by Step Solution

1. Step 1: Write the proportion equation
   356,976,667.42 : 535,183,385.58 = 225,541,906.56 : x
2. Step 2: Convert to fraction form
   356,976,667.42/535,183,385.58 = 225,541,906.56/x
3. Step 3: Cross multiply
   356,976,667.42x = 535,183,385.58 × 225,541,906.56
4. Step 4: Simplify right side
   356,976,667.42x = 120,706,281,142,948,816
5. Step 5: Solve for x
   x = 120,706,281,142,948,816/356,976,667.42
6. Step 6: Final answer
   x = 338,134,931.94