Finding the Fourth Proportional to 77,150.72, 106,477.83 and 43,161.09

Step by Step Solution

1. Step 1: Write the proportion equation
   77,150.72 : 106,477.83 = 43,161.09 : x
2. Step 2: Convert to fraction form
   77,150.72/106,477.83 = 43,161.09/x
3. Step 3: Cross multiply
   77,150.72x = 106,477.83 × 43,161.09
4. Step 4: Simplify right side
   77,150.72x = 4,595,699,203.63
5. Step 5: Solve for x
   x = 4,595,699,203.63/77,150.72
6. Step 6: Final answer
   x = 59,567.81