Finding the Fourth Proportional to 58,645.91, 80,977.94 and 54,168.03

Step by Step Solution

1. Step 1: Write the proportion equation
   58,645.91 : 80,977.94 = 54,168.03 : x
2. Step 2: Convert to fraction form
   58,645.91/80,977.94 = 54,168.03/x
3. Step 3: Cross multiply
   58,645.91x = 80,977.94 × 54,168.03
4. Step 4: Simplify right side
   58,645.91x = 4,386,415,483.26
5. Step 5: Solve for x
   x = 4,386,415,483.26/58,645.91
6. Step 6: Final answer
   x = 74,794.91