Finding the Fourth Proportional to 86,667.30, 130,048.98 and 42,294.42

Step by Step Solution

1. Step 1: Write the proportion equation
   86,667.30 : 130,048.98 = 42,294.42 : x
2. Step 2: Convert to fraction form
   86,667.30/130,048.98 = 42,294.42/x
3. Step 3: Cross multiply
   86,667.30x = 130,048.98 × 42,294.42
4. Step 4: Simplify right side
   86,667.30x = 5,500,346,180.69
5. Step 5: Solve for x
   x = 5,500,346,180.69/86,667.30
6. Step 6: Final answer
   x = 63,465.07