Finding the Fourth Proportional to 72,516.49, 108,761.76 and 46,142.89

Step by Step Solution

1. Step 1: Write the proportion equation
   72,516.49 : 108,761.76 = 46,142.89 : x
2. Step 2: Convert to fraction form
   72,516.49/108,761.76 = 46,142.89/x
3. Step 3: Cross multiply
   72,516.49x = 108,761.76 × 46,142.89
4. Step 4: Simplify right side
   72,516.49x = 5,018,581,927.89
5. Step 5: Solve for x
   x = 5,018,581,927.89/72,516.49
6. Step 6: Final answer
   x = 69,206.08