Finding the Fourth Proportional to 52,878.96, 72,961.56 and 30,510

Step by Step Solution

1. Step 1: Write the proportion equation
   52,878.96 : 72,961.56 = 30,510 : x
2. Step 2: Convert to fraction form
   52,878.96/72,961.56 = 30,510/x
3. Step 3: Cross multiply
   52,878.96x = 72,961.56 × 30,510
4. Step 4: Simplify right side
   52,878.96x = 2,226,057,195.60
5. Step 5: Solve for x
   x = 2,226,057,195.60/52,878.96
6. Step 6: Final answer
   x = 42,097.22