Finding the Fourth Proportional to 65,238, 90,029.52 and 35,430

Step by Step Solution

1. Step 1: Write the proportion equation
   65,238 : 90,029.52 = 35,430 : x
2. Step 2: Convert to fraction form
   65,238/90,029.52 = 35,430/x
3. Step 3: Cross multiply
   65,238x = 90,029.52 × 35,430
4. Step 4: Simplify right side
   65,238x = 3,189,745,893.60
5. Step 5: Solve for x
   x = 3,189,745,893.60/65,238
6. Step 6: Final answer
   x = 48,893.99