Finding the Fourth Proportional to 93,005.34, 128,119.58 and 67,436.57

Step by Step Solution

1. Step 1: Write the proportion equation
   93,005.34 : 128,119.58 = 67,436.57 : x
2. Step 2: Convert to fraction form
   93,005.34/128,119.58 = 67,436.57/x
3. Step 3: Cross multiply
   93,005.34x = 128,119.58 × 67,436.57
4. Step 4: Simplify right side
   93,005.34x = 8,639,945,025.04
5. Step 5: Solve for x
   x = 8,639,945,025.04/93,005.34
6. Step 6: Final answer
   x = 92,897.30