Finding the Fourth Proportional to 72,310.34, 108,632.01 and 51,302.54

Step by Step Solution

1. Step 1: Write the proportion equation
   72,310.34 : 108,632.01 = 51,302.54 : x
2. Step 2: Convert to fraction form
   72,310.34/108,632.01 = 51,302.54/x
3. Step 3: Cross multiply
   72,310.34x = 108,632.01 × 51,302.54
4. Step 4: Simplify right side
   72,310.34x = 5,573,098,038.31
5. Step 5: Solve for x
   x = 5,573,098,038.31/72,310.34
6. Step 6: Final answer
   x = 77,071.94