Finding the Fourth Proportional to 93,399.49, 128,886.02 and 53,123.05

Step by Step Solution

1. Step 1: Write the proportion equation
   93,399.49 : 128,886.02 = 53,123.05 : x
2. Step 2: Convert to fraction form
   93,399.49/128,886.02 = 53,123.05/x
3. Step 3: Cross multiply
   93,399.49x = 128,886.02 × 53,123.05
4. Step 4: Simplify right side
   93,399.49x = 6,846,818,219.15
5. Step 5: Solve for x
   x = 6,846,818,219.15/93,399.49
6. Step 6: Final answer
   x = 73,306.81