Finding the Fourth Proportional to 71,019.48, 97,965.55 and 45,516.78

Step by Step Solution

1. Step 1: Write the proportion equation
   71,019.48 : 97,965.55 = 45,516.78 : x
2. Step 2: Convert to fraction form
   71,019.48/97,965.55 = 45,516.78/x
3. Step 3: Cross multiply
   71,019.48x = 97,965.55 × 45,516.78
4. Step 4: Simplify right side
   71,019.48x = 4,459,076,386.93
5. Step 5: Solve for x
   x = 4,459,076,386.93/71,019.48
6. Step 6: Final answer
   x = 62,786.67