Finding the Fourth Proportional to 72,443.40, 101,559 and 72,443.40

Step by Step Solution

1. Step 1: Write the proportion equation
   72,443.40 : 101,559 = 72,443.40 : x
2. Step 2: Convert to fraction form
   72,443.40/101,559 = 72,443.40/x
3. Step 3: Cross multiply
   72,443.40x = 101,559 × 72,443.40
4. Step 4: Simplify right side
   72,443.40x = 7,357,279,260.60
5. Step 5: Solve for x
   x = 7,357,279,260.60/72,443.40
6. Step 6: Final answer
   x = 101,559