Finding the Fourth Proportional to 42,058.47, 63,076.73 and 12,468.36

Step by Step Solution

1. Step 1: Write the proportion equation
   42,058.47 : 63,076.73 = 12,468.36 : x
2. Step 2: Convert to fraction form
   42,058.47/63,076.73 = 12,468.36/x
3. Step 3: Cross multiply
   42,058.47x = 63,076.73 × 12,468.36
4. Step 4: Simplify right side
   42,058.47x = 786,463,314.92
5. Step 5: Solve for x
   x = 786,463,314.92/42,058.47
6. Step 6: Final answer
   x = 18,699.28