Finding the Fourth Proportional to 42,045.76, 63,076.41 and 12,058.74

Step by Step Solution

1. Step 1: Write the proportion equation
   42,045.76 : 63,076.41 = 12,058.74 : x
2. Step 2: Convert to fraction form
   42,045.76/63,076.41 = 12,058.74/x
3. Step 3: Cross multiply
   42,045.76x = 63,076.41 × 12,058.74
4. Step 4: Simplify right side
   42,045.76x = 760,622,028.32
5. Step 5: Solve for x
   x = 760,622,028.32/42,045.76
6. Step 6: Final answer
   x = 18,090.34