Finding the Fourth Proportional to 278,693.10, 384,598.50 and 151,368.72

Step by Step Solution

1. Step 1: Write the proportion equation
   278,693.10 : 384,598.50 = 151,368.72 : x
2. Step 2: Convert to fraction form
   278,693.10/384,598.50 = 151,368.72/x
3. Step 3: Cross multiply
   278,693.10x = 384,598.50 × 151,368.72
4. Step 4: Simplify right side
   278,693.10x = 58,216,182,658.92
5. Step 5: Solve for x
   x = 58,216,182,658.92/278,693.10
6. Step 6: Final answer
   x = 208,889.93