Finding the Fourth Proportional to 93,019.08, 128,149.38 and 64,675.56

Step by Step Solution

1. Step 1: Write the proportion equation
   93,019.08 : 128,149.38 = 64,675.56 : x
2. Step 2: Convert to fraction form
   93,019.08/128,149.38 = 64,675.56/x
3. Step 3: Cross multiply
   93,019.08x = 128,149.38 × 64,675.56
4. Step 4: Simplify right side
   93,019.08x = 8,288,132,915.15
5. Step 5: Solve for x
   x = 8,288,132,915.15/93,019.08
6. Step 6: Final answer
   x = 89,101.43