Finding the Fourth Proportional to 52,845.51, 72,929.25 and 28,974

Step by Step Solution

1. Step 1: Write the proportion equation
   52,845.51 : 72,929.25 = 28,974 : x
2. Step 2: Convert to fraction form
   52,845.51/72,929.25 = 28,974/x
3. Step 3: Cross multiply
   52,845.51x = 72,929.25 × 28,974
4. Step 4: Simplify right side
   52,845.51x = 2,113,052,089.50
5. Step 5: Solve for x
   x = 2,113,052,089.50/52,845.51
6. Step 6: Final answer
   x = 39,985.46