Finding the Fourth Proportional to 35,345.31, 48,783.65 and 21,002.42

Step by Step Solution

1. Step 1: Write the proportion equation
   35,345.31 : 48,783.65 = 21,002.42 : x
2. Step 2: Convert to fraction form
   35,345.31/48,783.65 = 21,002.42/x
3. Step 3: Cross multiply
   35,345.31x = 48,783.65 × 21,002.42
4. Step 4: Simplify right side
   35,345.31x = 1,024,574,357.50
5. Step 5: Solve for x
   x = 1,024,574,357.50/35,345.31
6. Step 6: Final answer
   x = 28,987.56