Finding the Fourth Proportional to 115,380.45, 159,233.01 and 64,403.10

Step by Step Solution

1. Step 1: Write the proportion equation
   115,380.45 : 159,233.01 = 64,403.10 : x
2. Step 2: Convert to fraction form
   115,380.45/159,233.01 = 64,403.10/x
3. Step 3: Cross multiply
   115,380.45x = 159,233.01 × 64,403.10
4. Step 4: Simplify right side
   115,380.45x = 10,255,099,466.33
5. Step 5: Solve for x
   x = 10,255,099,466.33/115,380.45
6. Step 6: Final answer
   x = 88,880.74