Finding the Fourth Proportional to 82,684.82, 123,928.80 and 57,588.98

Step by Step Solution

1. Step 1: Write the proportion equation
   82,684.82 : 123,928.80 = 57,588.98 : x
2. Step 2: Convert to fraction form
   82,684.82/123,928.80 = 57,588.98/x
3. Step 3: Cross multiply
   82,684.82x = 123,928.80 × 57,588.98
4. Step 4: Simplify right side
   82,684.82x = 7,136,933,184.62
5. Step 5: Solve for x
   x = 7,136,933,184.62/82,684.82
6. Step 6: Final answer
   x = 86,314.91