Finding the Fourth Proportional to 48,499.89, 66,923.33 and 28,360.05

Step by Step Solution

1. Step 1: Write the proportion equation
   48,499.89 : 66,923.33 = 28,360.05 : x
2. Step 2: Convert to fraction form
   48,499.89/66,923.33 = 28,360.05/x
3. Step 3: Cross multiply
   48,499.89x = 66,923.33 × 28,360.05
4. Step 4: Simplify right side
   48,499.89x = 1,897,948,843.17
5. Step 5: Solve for x
   x = 1,897,948,843.17/48,499.89
6. Step 6: Final answer
   x = 39,133.05