Finding the Fourth Proportional to 298,938.45, 448,666.71 and 156,884.10

Step by Step Solution

1. Step 1: Write the proportion equation
   298,938.45 : 448,666.71 = 156,884.10 : x
2. Step 2: Convert to fraction form
   298,938.45/448,666.71 = 156,884.10/x
3. Step 3: Cross multiply
   298,938.45x = 448,666.71 × 156,884.10
4. Step 4: Simplify right side
   298,938.45x = 70,388,672,998.31
5. Step 5: Solve for x
   x = 70,388,672,998.31/298,938.45
6. Step 6: Final answer
   x = 235,462.09