Finding the Fourth Proportional to 58,647.42, 80,980.01 and 54,169.53

Step by Step Solution

1. Step 1: Write the proportion equation
   58,647.42 : 80,980.01 = 54,169.53 : x
2. Step 2: Convert to fraction form
   58,647.42/80,980.01 = 54,169.53/x
3. Step 3: Cross multiply
   58,647.42x = 80,980.01 × 54,169.53
4. Step 4: Simplify right side
   58,647.42x = 4,386,649,081.10
5. Step 5: Solve for x
   x = 4,386,649,081.10/58,647.42
6. Step 6: Final answer
   x = 74,796.97