Finding the Fourth Proportional to 93,198.37, 128,617.40 and 52,915.89

Step by Step Solution

1. Step 1: Write the proportion equation
   93,198.37 : 128,617.40 = 52,915.89 : x
2. Step 2: Convert to fraction form
   93,198.37/128,617.40 = 52,915.89/x
3. Step 3: Cross multiply
   93,198.37x = 128,617.40 × 52,915.89
4. Step 4: Simplify right side
   93,198.37x = 6,805,903,443.59
5. Step 5: Solve for x
   x = 6,805,903,443.59/93,198.37
6. Step 6: Final answer
   x = 73,025.99