Finding the Fourth Proportional to 65,309.14, 90,043.18 and 42,298.32

Step by Step Solution

1. Step 1: Write the proportion equation
   65,309.14 : 90,043.18 = 42,298.32 : x
2. Step 2: Convert to fraction form
   65,309.14/90,043.18 = 42,298.32/x
3. Step 3: Cross multiply
   65,309.14x = 90,043.18 × 42,298.32
4. Step 4: Simplify right side
   65,309.14x = 3,808,675,241.46
5. Step 5: Solve for x
   x = 3,808,675,241.46/65,309.14
6. Step 6: Final answer
   x = 58,317.64