Finding the Fourth Proportional to 45,558.54, 68,347.52 and 15,978.15

Step by Step Solution

1. Step 1: Write the proportion equation
   45,558.54 : 68,347.52 = 15,978.15 : x
2. Step 2: Convert to fraction form
   45,558.54/68,347.52 = 15,978.15/x
3. Step 3: Cross multiply
   45,558.54x = 68,347.52 × 15,978.15
4. Step 4: Simplify right side
   45,558.54x = 1,092,066,846.80
5. Step 5: Solve for x
   x = 1,092,066,846.80/45,558.54
6. Step 6: Final answer
   x = 23,970.63