Finding the Fourth Proportional to 52,631.83, 72,630.73 and 28,758.65

Step by Step Solution

1. Step 1: Write the proportion equation
   52,631.83 : 72,630.73 = 28,758.65 : x
2. Step 2: Convert to fraction form
   52,631.83/72,630.73 = 28,758.65/x
3. Step 3: Cross multiply
   52,631.83x = 72,630.73 × 28,758.65
4. Step 4: Simplify right side
   52,631.83x = 2,088,761,254.34
5. Step 5: Solve for x
   x = 2,088,761,254.34/52,631.83
6. Step 6: Final answer
   x = 39,686.28