Finding the Fourth Proportional to 31,084,992, 42,897,288.96 and 18,207,936

Step by Step Solution

1. Step 1: Write the proportion equation
   31,084,992 : 42,897,288.96 = 18,207,936 : x
2. Step 2: Convert to fraction form
   31,084,992/42,897,288.96 = 18,207,936/x
3. Step 3: Cross multiply
   31,084,992x = 42,897,288.96 × 18,207,936
4. Step 4: Simplify right side
   31,084,992x = 781,071,091,957,186.62
5. Step 5: Solve for x
   x = 781,071,091,957,186.62/31,084,992
6. Step 6: Final answer
   x = 25,126,951.68