Finding the Fourth Proportional to 64,371.98, 88,864.43 and 42,897.47

Step by Step Solution

1. Step 1: Write the proportion equation
   64,371.98 : 88,864.43 = 42,897.47 : x
2. Step 2: Convert to fraction form
   64,371.98/88,864.43 = 42,897.47/x
3. Step 3: Cross multiply
   64,371.98x = 88,864.43 × 42,897.47
4. Step 4: Simplify right side
   64,371.98x = 3,812,058,561.18
5. Step 5: Solve for x
   x = 3,812,058,561.18/64,371.98
6. Step 6: Final answer
   x = 59,219.22