Finding the Fourth Proportional to 52,659.52, 72,670.16 and 28,786.19

Step by Step Solution

1. Step 1: Write the proportion equation
   52,659.52 : 72,670.16 = 28,786.19 : x
2. Step 2: Convert to fraction form
   52,659.52/72,670.16 = 28,786.19/x
3. Step 3: Cross multiply
   52,659.52x = 72,670.16 × 28,786.19
4. Step 4: Simplify right side
   52,659.52x = 2,091,897,150.47
5. Step 5: Solve for x
   x = 2,091,897,150.47/52,659.52
6. Step 6: Final answer
   x = 39,724.95