Finding the Fourth Proportional to 79,055.02, 118,324.72 and 42,977.20

Step by Step Solution

1. Step 1: Write the proportion equation
   79,055.02 : 118,324.72 = 42,977.20 : x
2. Step 2: Convert to fraction form
   79,055.02/118,324.72 = 42,977.20/x
3. Step 3: Cross multiply
   79,055.02x = 118,324.72 × 42,977.20
4. Step 4: Simplify right side
   79,055.02x = 5,085,265,156.38
5. Step 5: Solve for x
   x = 5,085,265,156.38/79,055.02
6. Step 6: Final answer
   x = 64,325.65