Finding the Fourth Proportional to 72,494.17, 99,814.61 and 65,851.16

Step by Step Solution

1. Step 1: Write the proportion equation
   72,494.17 : 99,814.61 = 65,851.16 : x
2. Step 2: Convert to fraction form
   72,494.17/99,814.61 = 65,851.16/x
3. Step 3: Cross multiply
   72,494.17x = 99,814.61 × 65,851.16
4. Step 4: Simplify right side
   72,494.17x = 6,572,907,519.00
5. Step 5: Solve for x
   x = 6,572,907,519.00/72,494.17
6. Step 6: Final answer
   x = 90,668.09