Finding the Fourth Proportional to 95,503.81, 143,206.50 and 42,868.18

Step by Step Solution

1. Step 1: Write the proportion equation
   95,503.81 : 143,206.50 = 42,868.18 : x
2. Step 2: Convert to fraction form
   95,503.81/143,206.50 = 42,868.18/x
3. Step 3: Cross multiply
   95,503.81x = 143,206.50 × 42,868.18
4. Step 4: Simplify right side
   95,503.81x = 6,139,002,019.17
5. Step 5: Solve for x
   x = 6,139,002,019.17/95,503.81
6. Step 6: Final answer
   x = 64,280.18