Finding the Fourth Proportional to 285,096,268.83, 393,432,834.93 and 154,716,076.83

Step by Step Solution

1. Step 1: Write the proportion equation
   285,096,268.83 : 393,432,834.93 = 154,716,076.83 : x
2. Step 2: Convert to fraction form
   285,096,268.83/393,432,834.93 = 154,716,076.83/x
3. Step 3: Cross multiply
   285,096,268.83x = 393,432,834.93 × 154,716,076.83
4. Step 4: Simplify right side
   285,096,268.83x = 60,870,384,716,474,592
5. Step 5: Solve for x
   x = 60,870,384,716,474,592/285,096,268.83
6. Step 6: Final answer
   x = 213,508,177.31