Finding the Fourth Proportional to 48,100.89, 71,799.09 and 42,419.59

Step by Step Solution

1. Step 1: Write the proportion equation
   48,100.89 : 71,799.09 = 42,419.59 : x
2. Step 2: Convert to fraction form
   48,100.89/71,799.09 = 42,419.59/x
3. Step 3: Cross multiply
   48,100.89x = 71,799.09 × 42,419.59
4. Step 4: Simplify right side
   48,100.89x = 3,045,687,939.75
5. Step 5: Solve for x
   x = 3,045,687,939.75/48,100.89
6. Step 6: Final answer
   x = 63,318.74