Finding the Fourth Proportional to 42,041.88, 63,075 and 12,460.28

Step by Step Solution

1. Step 1: Write the proportion equation
   42,041.88 : 63,075 = 12,460.28 : x
2. Step 2: Convert to fraction form
   42,041.88/63,075 = 12,460.28/x
3. Step 3: Cross multiply
   42,041.88x = 63,075 × 12,460.28
4. Step 4: Simplify right side
   42,041.88x = 785,932,161
5. Step 5: Solve for x
   x = 785,932,161/42,041.88
6. Step 6: Final answer
   x = 18,694.03