Finding the Fourth Proportional to 39,681.72, 59,522.94 and 10,099.59

Step by Step Solution

1. Step 1: Write the proportion equation
   39,681.72 : 59,522.94 = 10,099.59 : x
2. Step 2: Convert to fraction form
   39,681.72/59,522.94 = 10,099.59/x
3. Step 3: Cross multiply
   39,681.72x = 59,522.94 × 10,099.59
4. Step 4: Simplify right side
   39,681.72x = 601,157,289.59
5. Step 5: Solve for x
   x = 601,157,289.59/39,681.72
6. Step 6: Final answer
   x = 15,149.48