Finding the Fourth Proportional to 89,419.16, 123,398.70 and 49,133.72

Step by Step Solution

1. Step 1: Write the proportion equation
   89,419.16 : 123,398.70 = 49,133.72 : x
2. Step 2: Convert to fraction form
   89,419.16/123,398.70 = 49,133.72/x
3. Step 3: Cross multiply
   89,419.16x = 123,398.70 × 49,133.72
4. Step 4: Simplify right side
   89,419.16x = 6,063,037,174.16
5. Step 5: Solve for x
   x = 6,063,037,174.16/89,419.16
6. Step 6: Final answer
   x = 67,804.68