Finding the Fourth Proportional to 79,510.30, 119,264.82 and 20,345.80

Step by Step Solution

1. Step 1: Write the proportion equation
   79,510.30 : 119,264.82 = 20,345.80 : x
2. Step 2: Convert to fraction form
   79,510.30/119,264.82 = 20,345.80/x
3. Step 3: Cross multiply
   79,510.30x = 119,264.82 × 20,345.80
4. Step 4: Simplify right side
   79,510.30x = 2,426,538,174.76
5. Step 5: Solve for x
   x = 2,426,538,174.76/79,510.30
6. Step 6: Final answer
   x = 30,518.54