Finding the Fourth Proportional to 52,830.04, 72,907.25 and 28,956.72

Step by Step Solution

1. Step 1: Write the proportion equation
   52,830.04 : 72,907.25 = 28,956.72 : x
2. Step 2: Convert to fraction form
   52,830.04/72,907.25 = 28,956.72/x
3. Step 3: Cross multiply
   52,830.04x = 72,907.25 × 28,956.72
4. Step 4: Simplify right side
   52,830.04x = 2,111,154,824.22
5. Step 5: Solve for x
   x = 2,111,154,824.22/52,830.04
6. Step 6: Final answer
   x = 39,961.26