Finding the Fourth Proportional to 85,304.71, 127,889.63 and 42,588.24

Step by Step Solution

1. Step 1: Write the proportion equation
   85,304.71 : 127,889.63 = 42,588.24 : x
2. Step 2: Convert to fraction form
   85,304.71/127,889.63 = 42,588.24/x
3. Step 3: Cross multiply
   85,304.71x = 127,889.63 × 42,588.24
4. Step 4: Simplify right side
   85,304.71x = 5,446,594,255.95
5. Step 5: Solve for x
   x = 5,446,594,255.95/85,304.71
6. Step 6: Final answer
   x = 63,848.69