Finding the Fourth Proportional to 76,851, 106,054.38 and 43,318.20

Step by Step Solution

1. Step 1: Write the proportion equation
   76,851 : 106,054.38 = 43,318.20 : x
2. Step 2: Convert to fraction form
   76,851/106,054.38 = 43,318.20/x
3. Step 3: Cross multiply
   76,851x = 106,054.38 × 43,318.20
4. Step 4: Simplify right side
   76,851x = 4,594,084,843.72
5. Step 5: Solve for x
   x = 4,594,084,843.72/76,851
6. Step 6: Final answer
   x = 59,779.12