Finding the Fourth Proportional to 35,242.72, 52,870.56 and 28,726.72

Step by Step Solution

1. Step 1: Write the proportion equation
   35,242.72 : 52,870.56 = 28,726.72 : x
2. Step 2: Convert to fraction form
   35,242.72/52,870.56 = 28,726.72/x
3. Step 3: Cross multiply
   35,242.72x = 52,870.56 × 28,726.72
4. Step 4: Simplify right side
   35,242.72x = 1,518,797,773.36
5. Step 5: Solve for x
   x = 1,518,797,773.36/35,242.72
6. Step 6: Final answer
   x = 43,095.36