Finding the Fourth Proportional to 42,699.43, 64,076.82 and 19,326.07

Step by Step Solution

1. Step 1: Write the proportion equation
   42,699.43 : 64,076.82 = 19,326.07 : x
2. Step 2: Convert to fraction form
   42,699.43/64,076.82 = 19,326.07/x
3. Step 3: Cross multiply
   42,699.43x = 64,076.82 × 19,326.07
4. Step 4: Simplify right side
   42,699.43x = 1,238,353,108.70
5. Step 5: Solve for x
   x = 1,238,353,108.70/42,699.43
6. Step 6: Final answer
   x = 29,001.63