Finding the Fourth Proportional to 30,776, 42,470.88 and 17,528

Step by Step Solution

1. Step 1: Write the proportion equation
   30,776 : 42,470.88 = 17,528 : x
2. Step 2: Convert to fraction form
   30,776/42,470.88 = 17,528/x
3. Step 3: Cross multiply
   30,776x = 42,470.88 × 17,528
4. Step 4: Simplify right side
   30,776x = 744,429,584.64
5. Step 5: Solve for x
   x = 744,429,584.64/30,776
6. Step 6: Final answer
   x = 24,188.64