Finding the Fourth Proportional to 43,238.10, 64,427.31 and 38,521.86

Step by Step Solution

1. Step 1: Write the proportion equation
   43,238.10 : 64,427.31 = 38,521.86 : x
2. Step 2: Convert to fraction form
   43,238.10/64,427.31 = 38,521.86/x
3. Step 3: Cross multiply
   43,238.10x = 64,427.31 × 38,521.86
4. Step 4: Simplify right side
   43,238.10x = 2,481,859,816.00
5. Step 5: Solve for x
   x = 2,481,859,816.00/43,238.10
6. Step 6: Final answer
   x = 57,399.84