Finding the Fourth Proportional to 476,484.72, 657,300.72 and 385,942.92

Step by Step Solution

1. Step 1: Write the proportion equation
   476,484.72 : 657,300.72 = 385,942.92 : x
2. Step 2: Convert to fraction form
   476,484.72/657,300.72 = 385,942.92/x
3. Step 3: Cross multiply
   476,484.72x = 657,300.72 × 385,942.92
4. Step 4: Simplify right side
   476,484.72x = 253,680,559,194.90
5. Step 5: Solve for x
   x = 253,680,559,194.90/476,484.72
6. Step 6: Final answer
   x = 532,400.20