Finding the Fourth Proportional to 42,927.98, 64,076.17 and 39,919.64

Step by Step Solution

1. Step 1: Write the proportion equation
   42,927.98 : 64,076.17 = 39,919.64 : x
2. Step 2: Convert to fraction form
   42,927.98/64,076.17 = 39,919.64/x
3. Step 3: Cross multiply
   42,927.98x = 64,076.17 × 39,919.64
4. Step 4: Simplify right side
   42,927.98x = 2,557,897,699.37
5. Step 5: Solve for x
   x = 2,557,897,699.37/42,927.98
6. Step 6: Final answer
   x = 59,585.79