Finding the Fourth Proportional to 31,730,155.05, 43,796,694.15 and 18,684,980.79

Step by Step Solution

1. Step 1: Write the proportion equation
   31,730,155.05 : 43,796,694.15 = 18,684,980.79 : x
2. Step 2: Convert to fraction form
   31,730,155.05/43,796,694.15 = 18,684,980.79/x
3. Step 3: Cross multiply
   31,730,155.05x = 43,796,694.15 × 18,684,980.79
4. Step 4: Simplify right side
   31,730,155.05x = 818,340,388,858,255.25
5. Step 5: Solve for x
   x = 818,340,388,858,255.25/31,730,155.05
6. Step 6: Final answer
   x = 25,790,620.55