Finding the Fourth Proportional to 57,820.38, 79,805.46 and 37,642.13

Step by Step Solution

1. Step 1: Write the proportion equation
   57,820.38 : 79,805.46 = 37,642.13 : x
2. Step 2: Convert to fraction form
   57,820.38/79,805.46 = 37,642.13/x
3. Step 3: Cross multiply
   57,820.38x = 79,805.46 × 37,642.13
4. Step 4: Simplify right side
   57,820.38x = 3,004,047,101.00
5. Step 5: Solve for x
   x = 3,004,047,101.00/57,820.38
6. Step 6: Final answer
   x = 51,954.81