Finding the Fourth Proportional to 72,665.70, 101,498.70 and 72,665.70

Step by Step Solution

1. Step 1: Write the proportion equation
   72,665.70 : 101,498.70 = 72,665.70 : x
2. Step 2: Convert to fraction form
   72,665.70/101,498.70 = 72,665.70/x
3. Step 3: Cross multiply
   72,665.70x = 101,498.70 × 72,665.70
4. Step 4: Simplify right side
   72,665.70x = 7,375,474,084.59
5. Step 5: Solve for x
   x = 7,375,474,084.59/72,665.70
6. Step 6: Final answer
   x = 101,498.70