Finding the Fourth Proportional to 152,280.86, 227,924.49 and 137,731.10

Step by Step Solution

1. Step 1: Write the proportion equation
   152,280.86 : 227,924.49 = 137,731.10 : x
2. Step 2: Convert to fraction form
   152,280.86/227,924.49 = 137,731.10/x
3. Step 3: Cross multiply
   152,280.86x = 227,924.49 × 137,731.10
4. Step 4: Simplify right side
   152,280.86x = 31,392,290,724.64
5. Step 5: Solve for x
   x = 31,392,290,724.64/152,280.86
6. Step 6: Final answer
   x = 206,147.32