Finding the Fourth Proportional to 93,012.72, 128,326.32 and 52,723.32

Step by Step Solution

1. Step 1: Write the proportion equation
   93,012.72 : 128,326.32 = 52,723.32 : x
2. Step 2: Convert to fraction form
   93,012.72/128,326.32 = 52,723.32/x
3. Step 3: Cross multiply
   93,012.72x = 128,326.32 × 52,723.32
4. Step 4: Simplify right side
   93,012.72x = 6,765,789,633.78
5. Step 5: Solve for x
   x = 6,765,789,633.78/93,012.72
6. Step 6: Final answer
   x = 72,740.48