Finding the Fourth Proportional to 104,271, 156,012.84 and 64,642.56

Step by Step Solution

1. Step 1: Write the proportion equation
   104,271 : 156,012.84 = 64,642.56 : x
2. Step 2: Convert to fraction form
   104,271/156,012.84 = 64,642.56/x
3. Step 3: Cross multiply
   104,271x = 156,012.84 × 64,642.56
4. Step 4: Simplify right side
   104,271x = 10,085,069,370.47
5. Step 5: Solve for x
   x = 10,085,069,370.47/104,271
6. Step 6: Final answer
   x = 96,719.79