Finding the Fourth Proportional to 73,300.72, 109,784.96 and 57,406.72

Step by Step Solution

1. Step 1: Write the proportion equation
   73,300.72 : 109,784.96 = 57,406.72 : x
2. Step 2: Convert to fraction form
   73,300.72/109,784.96 = 57,406.72/x
3. Step 3: Cross multiply
   73,300.72x = 109,784.96 × 57,406.72
4. Step 4: Simplify right side
   73,300.72x = 6,302,394,458.93
5. Step 5: Solve for x
   x = 6,302,394,458.93/73,300.72
6. Step 6: Final answer
   x = 85,979.98