Finding the Fourth Proportional to 72,296.69, 99,769.93 and 42,099.62

Step by Step Solution

1. Step 1: Write the proportion equation
   72,296.69 : 99,769.93 = 42,099.62 : x
2. Step 2: Convert to fraction form
   72,296.69/99,769.93 = 42,099.62/x
3. Step 3: Cross multiply
   72,296.69x = 99,769.93 × 42,099.62
4. Step 4: Simplify right side
   72,296.69x = 4,200,275,536.33
5. Step 5: Solve for x
   x = 4,200,275,536.33/72,296.69
6. Step 6: Final answer
   x = 58,097.76