Finding the Fourth Proportional to 65,023.56, 89,676.36 and 42,354

Step by Step Solution

1. Step 1: Write the proportion equation
   65,023.56 : 89,676.36 = 42,354 : x
2. Step 2: Convert to fraction form
   65,023.56/89,676.36 = 42,354/x
3. Step 3: Cross multiply
   65,023.56x = 89,676.36 × 42,354
4. Step 4: Simplify right side
   65,023.56x = 3,798,152,551.44
5. Step 5: Solve for x
   x = 3,798,152,551.44/65,023.56
6. Step 6: Final answer
   x = 58,411.94