Finding the Fourth Proportional to 57,805.26, 79,747.65 and 45,820.50

Step by Step Solution

1. Step 1: Write the proportion equation
   57,805.26 : 79,747.65 = 45,820.50 : x
2. Step 2: Convert to fraction form
   57,805.26/79,747.65 = 45,820.50/x
3. Step 3: Cross multiply
   57,805.26x = 79,747.65 × 45,820.50
4. Step 4: Simplify right side
   57,805.26x = 3,654,077,196.83
5. Step 5: Solve for x
   x = 3,654,077,196.83/57,805.26
6. Step 6: Final answer
   x = 63,213.58