Finding the Fourth Proportional to 42,002.96, 62,985.48 and 12,410.48

Step by Step Solution

1. Step 1: Write the proportion equation
   42,002.96 : 62,985.48 = 12,410.48 : x
2. Step 2: Convert to fraction form
   42,002.96/62,985.48 = 12,410.48/x
3. Step 3: Cross multiply
   42,002.96x = 62,985.48 × 12,410.48
4. Step 4: Simplify right side
   42,002.96x = 781,680,039.83
5. Step 5: Solve for x
   x = 781,680,039.83/42,002.96
6. Step 6: Final answer
   x = 18,610.12