Finding the Fourth Proportional to 231,978.72, 348,002.64 and 107,332.32

Step by Step Solution

1. Step 1: Write the proportion equation
   231,978.72 : 348,002.64 = 107,332.32 : x
2. Step 2: Convert to fraction form
   231,978.72/348,002.64 = 107,332.32/x
3. Step 3: Cross multiply
   231,978.72x = 348,002.64 × 107,332.32
4. Step 4: Simplify right side
   231,978.72x = 37,351,930,717.32
5. Step 5: Solve for x
   x = 37,351,930,717.32/231,978.72
6. Step 6: Final answer
   x = 161,014.47