Finding the Fourth Proportional to 42,728,617.20, 58,965,411.93 and 23,149,992.18

Step by Step Solution

1. Step 1: Write the proportion equation
   42,728,617.20 : 58,965,411.93 = 23,149,992.18 : x
2. Step 2: Convert to fraction form
   42,728,617.20/58,965,411.93 = 23,149,992.18/x
3. Step 3: Cross multiply
   42,728,617.20x = 58,965,411.93 × 23,149,992.18
4. Step 4: Simplify right side
   42,728,617.20x = 1,365,048,825,069,978.75
5. Step 5: Solve for x
   x = 1,365,048,825,069,978.75/42,728,617.20
6. Step 6: Final answer
   x = 31,946,945.97