Finding the Fourth Proportional to 279,050.72, 418,553.98 and 89,460.60

Step by Step Solution

1. Step 1: Write the proportion equation
   279,050.72 : 418,553.98 = 89,460.60 : x
2. Step 2: Convert to fraction form
   279,050.72/418,553.98 = 89,460.60/x
3. Step 3: Cross multiply
   279,050.72x = 418,553.98 × 89,460.60
4. Step 4: Simplify right side
   279,050.72x = 37,444,091,247.54
5. Step 5: Solve for x
   x = 37,444,091,247.54/279,050.72
6. Step 6: Final answer
   x = 134,183.82