Finding the Fourth Proportional to 81,977.59, 122,980.40 and 37,608.15

Step by Step Solution

1. Step 1: Write the proportion equation
   81,977.59 : 122,980.40 = 37,608.15 : x
2. Step 2: Convert to fraction form
   81,977.59/122,980.40 = 37,608.15/x
3. Step 3: Cross multiply
   81,977.59x = 122,980.40 × 37,608.15
4. Step 4: Simplify right side
   81,977.59x = 4,625,065,158.43
5. Step 5: Solve for x
   x = 4,625,065,158.43/81,977.59
6. Step 6: Final answer
   x = 56,418.65