Finding the Fourth Proportional to 82,389.61, 123,621.34 and 37,992.57

Step by Step Solution

1. Step 1: Write the proportion equation
   82,389.61 : 123,621.34 = 37,992.57 : x
2. Step 2: Convert to fraction form
   82,389.61/123,621.34 = 37,992.57/x
3. Step 3: Cross multiply
   82,389.61x = 123,621.34 × 37,992.57
4. Step 4: Simplify right side
   82,389.61x = 4,696,691,926.12
5. Step 5: Solve for x
   x = 4,696,691,926.12/82,389.61
6. Step 6: Final answer
   x = 57,005.88