Finding the Fourth Proportional to 93,104.56, 128,461.89 and 54,865.67

Step by Step Solution

1. Step 1: Write the proportion equation
   93,104.56 : 128,461.89 = 54,865.67 : x
2. Step 2: Convert to fraction form
   93,104.56/128,461.89 = 54,865.67/x
3. Step 3: Cross multiply
   93,104.56x = 128,461.89 × 54,865.67
4. Step 4: Simplify right side
   93,104.56x = 7,048,147,664.32
5. Step 5: Solve for x
   x = 7,048,147,664.32/93,104.56
6. Step 6: Final answer
   x = 75,701.42