Finding the Fourth Proportional to 155,636.47, 233,664.59 and 99,585.98

Step by Step Solution

1. Step 1: Write the proportion equation
   155,636.47 : 233,664.59 = 99,585.98 : x
2. Step 2: Convert to fraction form
   155,636.47/233,664.59 = 99,585.98/x
3. Step 3: Cross multiply
   155,636.47x = 233,664.59 × 99,585.98
4. Step 4: Simplify right side
   155,636.47x = 23,269,718,019.57
5. Step 5: Solve for x
   x = 23,269,718,019.57/155,636.47
6. Step 6: Final answer
   x = 149,513.28