Finding the Fourth Proportional to 158,864.69, 238,351.71 and 99,631.01

Step by Step Solution

1. Step 1: Write the proportion equation
   158,864.69 : 238,351.71 = 99,631.01 : x
2. Step 2: Convert to fraction form
   158,864.69/238,351.71 = 99,631.01/x
3. Step 3: Cross multiply
   158,864.69x = 238,351.71 × 99,631.01
4. Step 4: Simplify right side
   158,864.69x = 23,747,220,410.77
5. Step 5: Solve for x
   x = 23,747,220,410.77/158,864.69
6. Step 6: Final answer
   x = 149,480.80