Finding the Fourth Proportional to 39,667.95, 59,501.79 and 10,086.21

Step by Step Solution

1. Step 1: Write the proportion equation
   39,667.95 : 59,501.79 = 10,086.21 : x
2. Step 2: Convert to fraction form
   39,667.95/59,501.79 = 10,086.21/x
3. Step 3: Cross multiply
   39,667.95x = 59,501.79 × 10,086.21
4. Step 4: Simplify right side
   39,667.95x = 600,147,549.32
5. Step 5: Solve for x
   x = 600,147,549.32/39,667.95
6. Step 6: Final answer
   x = 15,129.28