Finding the Fourth Proportional to 76,851.81, 106,055.27 and 42,860.33

Step by Step Solution

1. Step 1: Write the proportion equation
   76,851.81 : 106,055.27 = 42,860.33 : x
2. Step 2: Convert to fraction form
   76,851.81/106,055.27 = 42,860.33/x
3. Step 3: Cross multiply
   76,851.81x = 106,055.27 × 42,860.33
4. Step 4: Simplify right side
   76,851.81x = 4,545,563,870.44
5. Step 5: Solve for x
   x = 4,545,563,870.44/76,851.81
6. Step 6: Final answer
   x = 59,147.13