Finding the Fourth Proportional to 90,891,621.72, 136,340,231.94 and 39,747,314.52

Step by Step Solution

1. Step 1: Write the proportion equation
   90,891,621.72 : 136,340,231.94 = 39,747,314.52 : x
2. Step 2: Convert to fraction form
   90,891,621.72/136,340,231.94 = 39,747,314.52/x
3. Step 3: Cross multiply
   90,891,621.72x = 136,340,231.94 × 39,747,314.52
4. Step 4: Simplify right side
   90,891,621.72x = 5,419,158,080,648,930
5. Step 5: Solve for x
   x = 5,419,158,080,648,930/90,891,621.72
6. Step 6: Final answer
   x = 59,622,195.95