Finding the Fourth Proportional to 101,070.72, 139,449.60 and 65,262.24

Step by Step Solution

1. Step 1: Write the proportion equation
   101,070.72 : 139,449.60 = 65,262.24 : x
2. Step 2: Convert to fraction form
   101,070.72/139,449.60 = 65,262.24/x
3. Step 3: Cross multiply
   101,070.72x = 139,449.60 × 65,262.24
4. Step 4: Simplify right side
   101,070.72x = 9,100,793,263.10
5. Step 5: Solve for x
   x = 9,100,793,263.10/101,070.72
6. Step 6: Final answer
   x = 90,043.82