Finding the Fourth Proportional to 82,724.69, 124,100.88 and 64,954.64

Step by Step Solution

1. Step 1: Write the proportion equation
   82,724.69 : 124,100.88 = 64,954.64 : x
2. Step 2: Convert to fraction form
   82,724.69/124,100.88 = 64,954.64/x
3. Step 3: Cross multiply
   82,724.69x = 124,100.88 × 64,954.64
4. Step 4: Simplify right side
   82,724.69x = 8,060,927,363.58
5. Step 5: Solve for x
   x = 8,060,927,363.58/82,724.69
6. Step 6: Final answer
   x = 97,442.83