Finding the Fourth Proportional to 72,970.98, 100,697.67 and 41,139.42

Step by Step Solution

1. Step 1: Write the proportion equation
   72,970.98 : 100,697.67 = 41,139.42 : x
2. Step 2: Convert to fraction form
   72,970.98/100,697.67 = 41,139.42/x
3. Step 3: Cross multiply
   72,970.98x = 100,697.67 × 41,139.42
4. Step 4: Simplify right side
   72,970.98x = 4,142,643,739.15
5. Step 5: Solve for x
   x = 4,142,643,739.15/72,970.98
6. Step 6: Final answer
   x = 56,771.11