Finding the Fourth Proportional to 52,851.39, 72,934.93 and 28,980.28

Step by Step Solution

1. Step 1: Write the proportion equation
   52,851.39 : 72,934.93 = 28,980.28 : x
2. Step 2: Convert to fraction form
   52,851.39/72,934.93 = 28,980.28/x
3. Step 3: Cross multiply
   52,851.39x = 72,934.93 × 28,980.28
4. Step 4: Simplify right side
   52,851.39x = 2,113,674,820.57
5. Step 5: Solve for x
   x = 2,113,674,820.57/52,851.39
6. Step 6: Final answer
   x = 39,992.80