Finding the Fourth Proportional to 48,589.89, 72,890.68 and 45,932.69

Step by Step Solution

1. Step 1: Write the proportion equation
   48,589.89 : 72,890.68 = 45,932.69 : x
2. Step 2: Convert to fraction form
   48,589.89/72,890.68 = 45,932.69/x
3. Step 3: Cross multiply
   48,589.89x = 72,890.68 × 45,932.69
4. Step 4: Simplify right side
   48,589.89x = 3,348,065,008.33
5. Step 5: Solve for x
   x = 3,348,065,008.33/48,589.89
6. Step 6: Final answer
   x = 68,904.56