Finding the Fourth Proportional to 102,597.96, 153,945.68 and 71,056.56

Step by Step Solution

1. Step 1: Write the proportion equation
   102,597.96 : 153,945.68 = 71,056.56 : x
2. Step 2: Convert to fraction form
   102,597.96/153,945.68 = 71,056.56/x
3. Step 3: Cross multiply
   102,597.96x = 153,945.68 × 71,056.56
4. Step 4: Simplify right side
   102,597.96x = 10,938,850,092.38
5. Step 5: Solve for x
   x = 10,938,850,092.38/102,597.96
6. Step 6: Final answer
   x = 106,618.59