Finding the Fourth Proportional to 72,387,111.61, 108,579,719.71 and 17,800,168.33

Step by Step Solution

1. Step 1: Write the proportion equation
   72,387,111.61 : 108,579,719.71 = 17,800,168.33 : x
2. Step 2: Convert to fraction form
   72,387,111.61/108,579,719.71 = 17,800,168.33/x
3. Step 3: Cross multiply
   72,387,111.61x = 108,579,719.71 × 17,800,168.33
4. Step 4: Simplify right side
   72,387,111.61x = 1,932,737,288,062,218.50
5. Step 5: Solve for x
   x = 1,932,737,288,062,218.50/72,387,111.61
6. Step 6: Final answer
   x = 26,700,019.45