Finding the Fourth Proportional to 83,162.69, 124,288.23 and 60,720.63

Step by Step Solution

1. Step 1: Write the proportion equation
   83,162.69 : 124,288.23 = 60,720.63 : x
2. Step 2: Convert to fraction form
   83,162.69/124,288.23 = 60,720.63/x
3. Step 3: Cross multiply
   83,162.69x = 124,288.23 × 60,720.63
4. Step 4: Simplify right side
   83,162.69x = 7,546,859,627.18
5. Step 5: Solve for x
   x = 7,546,859,627.18/83,162.69
6. Step 6: Final answer
   x = 90,748.14