Finding the Fourth Proportional to 40,141.96, 60,221.76 and 13,487

Step by Step Solution

1. Step 1: Write the proportion equation
   40,141.96 : 60,221.76 = 13,487 : x
2. Step 2: Convert to fraction form
   40,141.96/60,221.76 = 13,487/x
3. Step 3: Cross multiply
   40,141.96x = 60,221.76 × 13,487
4. Step 4: Simplify right side
   40,141.96x = 812,210,877.12
5. Step 5: Solve for x
   x = 812,210,877.12/40,141.96
6. Step 6: Final answer
   x = 20,233.46