Finding the Fourth Proportional to 122,097.33, 183,426.71 and 86,156.49

Step by Step Solution

1. Step 1: Write the proportion equation
   122,097.33 : 183,426.71 = 86,156.49 : x
2. Step 2: Convert to fraction form
   122,097.33/183,426.71 = 86,156.49/x
3. Step 3: Cross multiply
   122,097.33x = 183,426.71 × 86,156.49
4. Step 4: Simplify right side
   122,097.33x = 15,803,401,075.07
5. Step 5: Solve for x
   x = 15,803,401,075.07/122,097.33
6. Step 6: Final answer
   x = 129,432.81