Finding the Fourth Proportional to 71,262.96, 98,327.28 and 42,578.32

Step by Step Solution

1. Step 1: Write the proportion equation
   71,262.96 : 98,327.28 = 42,578.32 : x
2. Step 2: Convert to fraction form
   71,262.96/98,327.28 = 42,578.32/x
3. Step 3: Cross multiply
   71,262.96x = 98,327.28 × 42,578.32
4. Step 4: Simplify right side
   71,262.96x = 4,186,609,854.98
5. Step 5: Solve for x
   x = 4,186,609,854.98/71,262.96
6. Step 6: Final answer
   x = 58,748.75