Finding the Fourth Proportional to 82,389.21, 123,620.73 and 37,992.16

Step by Step Solution

1. Step 1: Write the proportion equation
   82,389.21 : 123,620.73 = 37,992.16 : x
2. Step 2: Convert to fraction form
   82,389.21/123,620.73 = 37,992.16/x
3. Step 3: Cross multiply
   82,389.21x = 123,620.73 × 37,992.16
4. Step 4: Simplify right side
   82,389.21x = 4,696,618,553.48
5. Step 5: Solve for x
   x = 4,696,618,553.48/82,389.21
6. Step 6: Final answer
   x = 57,005.26