Finding the Fourth Proportional to 72,397.02, 99,897.75 and 40,563.42

Step by Step Solution

1. Step 1: Write the proportion equation
   72,397.02 : 99,897.75 = 40,563.42 : x
2. Step 2: Convert to fraction form
   72,397.02/99,897.75 = 40,563.42/x
3. Step 3: Cross multiply
   72,397.02x = 99,897.75 × 40,563.42
4. Step 4: Simplify right side
   72,397.02x = 4,052,194,390.31
5. Step 5: Solve for x
   x = 4,052,194,390.31/72,397.02
6. Step 6: Final answer
   x = 55,971.84