Finding the Fourth Proportional to 278,402.83, 384,196.98 and 151,078.46

Step by Step Solution

1. Step 1: Write the proportion equation
   278,402.83 : 384,196.98 = 151,078.46 : x
2. Step 2: Convert to fraction form
   278,402.83/384,196.98 = 151,078.46/x
3. Step 3: Cross multiply
   278,402.83x = 384,196.98 × 151,078.46
4. Step 4: Simplify right side
   278,402.83x = 58,043,888,075.05
5. Step 5: Solve for x
   x = 58,043,888,075.05/278,402.83
6. Step 6: Final answer
   x = 208,488.86