Finding the Fourth Proportional to 72,417.12, 108,613.13 and 19,814.10

Step by Step Solution

1. Step 1: Write the proportion equation
   72,417.12 : 108,613.13 = 19,814.10 : x
2. Step 2: Convert to fraction form
   72,417.12/108,613.13 = 19,814.10/x
3. Step 3: Cross multiply
   72,417.12x = 108,613.13 × 19,814.10
4. Step 4: Simplify right side
   72,417.12x = 2,152,071,320.06
5. Step 5: Solve for x
   x = 2,152,071,320.06/72,417.12
6. Step 6: Final answer
   x = 29,717.71