Finding the Fourth Proportional to 101,080.47, 139,463.04 and 65,271.99

Step by Step Solution

1. Step 1: Write the proportion equation
   101,080.47 : 139,463.04 = 65,271.99 : x
2. Step 2: Convert to fraction form
   101,080.47/139,463.04 = 65,271.99/x
3. Step 3: Cross multiply
   101,080.47x = 139,463.04 × 65,271.99
4. Step 4: Simplify right side
   101,080.47x = 9,103,030,152.25
5. Step 5: Solve for x
   x = 9,103,030,152.25/101,080.47
6. Step 6: Final answer
   x = 90,057.26