Finding the Fourth Proportional to 52,829.53, 72,904.32 and 28,956.15

Step by Step Solution

1. Step 1: Write the proportion equation
   52,829.53 : 72,904.32 = 28,956.15 : x
2. Step 2: Convert to fraction form
   52,829.53/72,904.32 = 28,956.15/x
3. Step 3: Cross multiply
   52,829.53x = 72,904.32 × 28,956.15
4. Step 4: Simplify right side
   52,829.53x = 2,111,028,425.57
5. Step 5: Solve for x
   x = 2,111,028,425.57/52,829.53
6. Step 6: Final answer
   x = 39,959.25