Finding the Fourth Proportional to 35,022.72, 52,538.88 and 12,830.88

Step by Step Solution

1. Step 1: Write the proportion equation
   35,022.72 : 52,538.88 = 12,830.88 : x
2. Step 2: Convert to fraction form
   35,022.72/52,538.88 = 12,830.88/x
3. Step 3: Cross multiply
   35,022.72x = 52,538.88 × 12,830.88
4. Step 4: Simplify right side
   35,022.72x = 674,120,064.61
5. Step 5: Solve for x
   x = 674,120,064.61/35,022.72
6. Step 6: Final answer
   x = 19,248.08