Finding the Fourth Proportional to 72,323.68, 99,801.30 and 42,109.24

Step by Step Solution

1. Step 1: Write the proportion equation
   72,323.68 : 99,801.30 = 42,109.24 : x
2. Step 2: Convert to fraction form
   72,323.68/99,801.30 = 42,109.24/x
3. Step 3: Cross multiply
   72,323.68x = 99,801.30 × 42,109.24
4. Step 4: Simplify right side
   72,323.68x = 4,202,556,894.01
5. Step 5: Solve for x
   x = 4,202,556,894.01/72,323.68
6. Step 6: Final answer
   x = 58,107.62