Finding the Fourth Proportional to 99,036.72, 148,488.56 and 39,010.32

Step by Step Solution

1. Step 1: Write the proportion equation
   99,036.72 : 148,488.56 = 39,010.32 : x
2. Step 2: Convert to fraction form
   99,036.72/148,488.56 = 39,010.32/x
3. Step 3: Cross multiply
   99,036.72x = 148,488.56 × 39,010.32
4. Step 4: Simplify right side
   99,036.72x = 5,792,586,241.94
5. Step 5: Solve for x
   x = 5,792,586,241.94/99,036.72
6. Step 6: Final answer
   x = 58,489.28