Finding the Fourth Proportional to 72,462.51, 108,694.49 and 19,871.96

Step by Step Solution

1. Step 1: Write the proportion equation
   72,462.51 : 108,694.49 = 19,871.96 : x
2. Step 2: Convert to fraction form
   72,462.51/108,694.49 = 19,871.96/x
3. Step 3: Cross multiply
   72,462.51x = 108,694.49 × 19,871.96
4. Step 4: Simplify right side
   72,462.51x = 2,159,971,914.67
5. Step 5: Solve for x
   x = 2,159,971,914.67/72,462.51
6. Step 6: Final answer
   x = 29,808.13