Finding the Fourth Proportional to 82,389.71, 123,621.48 and 37,992.66

Step by Step Solution

1. Step 1: Write the proportion equation
   82,389.71 : 123,621.48 = 37,992.66 : x
2. Step 2: Convert to fraction form
   82,389.71/123,621.48 = 37,992.66/x
3. Step 3: Cross multiply
   82,389.71x = 123,621.48 × 37,992.66
4. Step 4: Simplify right side
   82,389.71x = 4,696,708,858.34
5. Step 5: Solve for x
   x = 4,696,708,858.34/82,389.71
6. Step 6: Final answer
   x = 57,006.01