Finding the Fourth Proportional to 72,508.86, 108,750.96 and 19,906.02

Step by Step Solution

1. Step 1: Write the proportion equation
   72,508.86 : 108,750.96 = 19,906.02 : x
2. Step 2: Convert to fraction form
   72,508.86/108,750.96 = 19,906.02/x
3. Step 3: Cross multiply
   72,508.86x = 108,750.96 × 19,906.02
4. Step 4: Simplify right side
   72,508.86x = 2,164,798,784.78
5. Step 5: Solve for x
   x = 2,164,798,784.78/72,508.86
6. Step 6: Final answer
   x = 29,855.65