Finding the Fourth Proportional to 79,082,007.90, 118,640,898.84 and 42,689,617.20

Step by Step Solution

1. Step 1: Write the proportion equation
   79,082,007.90 : 118,640,898.84 = 42,689,617.20 : x
2. Step 2: Convert to fraction form
   79,082,007.90/118,640,898.84 = 42,689,617.20/x
3. Step 3: Cross multiply
   79,082,007.90x = 118,640,898.84 × 42,689,617.20
4. Step 4: Simplify right side
   79,082,007.90x = 5,064,734,555,743,525
5. Step 5: Solve for x
   x = 5,064,734,555,743,525/79,082,007.90
6. Step 6: Final answer
   x = 64,044,081.46