Finding the Fourth Proportional to 93,459.83, 128,970.05 and 53,169.83

Step by Step Solution

1. Step 1: Write the proportion equation
   93,459.83 : 128,970.05 = 53,169.83 : x
2. Step 2: Convert to fraction form
   93,459.83/128,970.05 = 53,169.83/x
3. Step 3: Cross multiply
   93,459.83x = 128,970.05 × 53,169.83
4. Step 4: Simplify right side
   93,459.83x = 6,857,314,722.89
5. Step 5: Solve for x
   x = 6,857,314,722.89/93,459.83
6. Step 6: Final answer
   x = 73,371.78