Finding the Fourth Proportional to 82,742.52, 124,110.96 and 45,320.22

Step by Step Solution

1. Step 1: Write the proportion equation
   82,742.52 : 124,110.96 = 45,320.22 : x
2. Step 2: Convert to fraction form
   82,742.52/124,110.96 = 45,320.22/x
3. Step 3: Cross multiply
   82,742.52x = 124,110.96 × 45,320.22
4. Step 4: Simplify right side
   82,742.52x = 5,624,736,011.61
5. Step 5: Solve for x
   x = 5,624,736,011.61/82,742.52
6. Step 6: Final answer
   x = 67,978.79