Finding the Fourth Proportional to 21,662,763.83, 29,897,906.56 and 13,825,657.53

Step by Step Solution

1. Step 1: Write the proportion equation
   21,662,763.83 : 29,897,906.56 = 13,825,657.53 : x
2. Step 2: Convert to fraction form
   21,662,763.83/29,897,906.56 = 13,825,657.53/x
3. Step 3: Cross multiply
   21,662,763.83x = 29,897,906.56 × 13,825,657.53
4. Step 4: Simplify right side
   21,662,763.83x = 413,358,216,927,936.25
5. Step 5: Solve for x
   x = 413,358,216,927,936.25/21,662,763.83
6. Step 6: Final answer
   x = 19,081,508.72