Finding the Fourth Proportional to 43,245, 64,763.01 and 21,003.48

Step by Step Solution

1. Step 1: Write the proportion equation
   43,245 : 64,763.01 = 21,003.48 : x
2. Step 2: Convert to fraction form
   43,245/64,763.01 = 21,003.48/x
3. Step 3: Cross multiply
   43,245x = 64,763.01 × 21,003.48
4. Step 4: Simplify right side
   43,245x = 1,360,248,585.27
5. Step 5: Solve for x
   x = 1,360,248,585.27/43,245
6. Step 6: Final answer
   x = 31,454.47