Finding the Fourth Proportional to 52,849.19, 72,936.47 and 28,980.52

Step by Step Solution

1. Step 1: Write the proportion equation
   52,849.19 : 72,936.47 = 28,980.52 : x
2. Step 2: Convert to fraction form
   52,849.19/72,936.47 = 28,980.52/x
3. Step 3: Cross multiply
   52,849.19x = 72,936.47 × 28,980.52
4. Step 4: Simplify right side
   52,849.19x = 2,113,736,827.56
5. Step 5: Solve for x
   x = 2,113,736,827.56/52,849.19
6. Step 6: Final answer
   x = 39,995.63