Finding the Fourth Proportional to 82,710.81, 124,078.52 and 38,342.05

Step by Step Solution

1. Step 1: Write the proportion equation
   82,710.81 : 124,078.52 = 38,342.05 : x
2. Step 2: Convert to fraction form
   82,710.81/124,078.52 = 38,342.05/x
3. Step 3: Cross multiply
   82,710.81x = 124,078.52 × 38,342.05
4. Step 4: Simplify right side
   82,710.81x = 4,757,424,817.77
5. Step 5: Solve for x
   x = 4,757,424,817.77/82,710.81
6. Step 6: Final answer
   x = 57,518.78