Finding the Fourth Proportional to 72,510.86, 108,753.96 and 19,908.02

Step by Step Solution

1. Step 1: Write the proportion equation
   72,510.86 : 108,753.96 = 19,908.02 : x
2. Step 2: Convert to fraction form
   72,510.86/108,753.96 = 19,908.02/x
3. Step 3: Cross multiply
   72,510.86x = 108,753.96 × 19,908.02
4. Step 4: Simplify right side
   72,510.86x = 2,165,076,010.76
5. Step 5: Solve for x
   x = 2,165,076,010.76/72,510.86
6. Step 6: Final answer
   x = 29,858.64