Finding the Fourth Proportional to 82,971.54, 124,479.18 and 43,518.06

Step by Step Solution

1. Step 1: Write the proportion equation
   82,971.54 : 124,479.18 = 43,518.06 : x
2. Step 2: Convert to fraction form
   82,971.54/124,479.18 = 43,518.06/x
3. Step 3: Cross multiply
   82,971.54x = 124,479.18 × 43,518.06
4. Step 4: Simplify right side
   82,971.54x = 5,417,092,423.99
5. Step 5: Solve for x
   x = 5,417,092,423.99/82,971.54
6. Step 6: Final answer
   x = 65,288.56