Finding the Fourth Proportional to 65,298, 90,111.30 and 35,490

Step by Step Solution

1. Step 1: Write the proportion equation
   65,298 : 90,111.30 = 35,490 : x
2. Step 2: Convert to fraction form
   65,298/90,111.30 = 35,490/x
3. Step 3: Cross multiply
   65,298x = 90,111.30 × 35,490
4. Step 4: Simplify right side
   65,298x = 3,198,050,037
5. Step 5: Solve for x
   x = 3,198,050,037/65,298
6. Step 6: Final answer
   x = 48,976.23