Finding the Fourth Proportional to 278,476.56, 384,298.38 and 151,152.12

Step by Step Solution

1. Step 1: Write the proportion equation
   278,476.56 : 384,298.38 = 151,152.12 : x
2. Step 2: Convert to fraction form
   278,476.56/384,298.38 = 151,152.12/x
3. Step 3: Cross multiply
   278,476.56x = 384,298.38 × 151,152.12
4. Step 4: Simplify right side
   278,476.56x = 58,087,514,849.57
5. Step 5: Solve for x
   x = 58,087,514,849.57/278,476.56
6. Step 6: Final answer
   x = 208,590.32