Finding the Fourth Proportional to 65,049.58, 89,783.43 and 42,349.05

Step by Step Solution

1. Step 1: Write the proportion equation
   65,049.58 : 89,783.43 = 42,349.05 : x
2. Step 2: Convert to fraction form
   65,049.58/89,783.43 = 42,349.05/x
3. Step 3: Cross multiply
   65,049.58x = 89,783.43 × 42,349.05
4. Step 4: Simplify right side
   65,049.58x = 3,802,242,966.24
5. Step 5: Solve for x
   x = 3,802,242,966.24/65,049.58
6. Step 6: Final answer
   x = 58,451.46