Finding the Fourth Proportional to 278,488.59, 384,314.72 and 151,164.15

Step by Step Solution

1. Step 1: Write the proportion equation
   278,488.59 : 384,314.72 = 151,164.15 : x
2. Step 2: Convert to fraction form
   278,488.59/384,314.72 = 151,164.15/x
3. Step 3: Cross multiply
   278,488.59x = 384,314.72 × 151,164.15
4. Step 4: Simplify right side
   278,488.59x = 58,094,607,225.47
5. Step 5: Solve for x
   x = 58,094,607,225.47/278,488.59
6. Step 6: Final answer
   x = 208,606.78