Finding the Fourth Proportional to 152,399.91, 228,643.61 and 99,744.24

Step by Step Solution

1. Step 1: Write the proportion equation
   152,399.91 : 228,643.61 = 99,744.24 : x
2. Step 2: Convert to fraction form
   152,399.91/228,643.61 = 99,744.24/x
3. Step 3: Cross multiply
   152,399.91x = 228,643.61 × 99,744.24
4. Step 4: Simplify right side
   152,399.91x = 22,805,882,611.59
5. Step 5: Solve for x
   x = 22,805,882,611.59/152,399.91
6. Step 6: Final answer
   x = 149,644.99