Finding the Fourth Proportional to 40,642.03, 60,968.86 and 12,564.53

Step by Step Solution

1. Step 1: Write the proportion equation
   40,642.03 : 60,968.86 = 12,564.53 : x
2. Step 2: Convert to fraction form
   40,642.03/60,968.86 = 12,564.53/x
3. Step 3: Cross multiply
   40,642.03x = 60,968.86 × 12,564.53
4. Step 4: Simplify right side
   40,642.03x = 766,044,797.10
5. Step 5: Solve for x
   x = 766,044,797.10/40,642.03
6. Step 6: Final answer
   x = 18,848.59