Finding the Fourth Proportional to 35,501.56, 48,994.52 and 20,399.10

Step by Step Solution

1. Step 1: Write the proportion equation
   35,501.56 : 48,994.52 = 20,399.10 : x
2. Step 2: Convert to fraction form
   35,501.56/48,994.52 = 20,399.10/x
3. Step 3: Cross multiply
   35,501.56x = 48,994.52 × 20,399.10
4. Step 4: Simplify right side
   35,501.56x = 999,444,112.93
5. Step 5: Solve for x
   x = 999,444,112.93/35,501.56
6. Step 6: Final answer
   x = 28,152.12