Finding the Fourth Proportional to 278,385.72, 384,173.30 and 151,061.30

Step by Step Solution

1. Step 1: Write the proportion equation
   278,385.72 : 384,173.30 = 151,061.30 : x
2. Step 2: Convert to fraction form
   278,385.72/384,173.30 = 151,061.30/x
3. Step 3: Cross multiply
   278,385.72x = 384,173.30 × 151,061.30
4. Step 4: Simplify right side
   278,385.72x = 58,033,718,123.29
5. Step 5: Solve for x
   x = 58,033,718,123.29/278,385.72
6. Step 6: Final answer
   x = 208,465.14