Finding the Fourth Proportional to 357,401.34, 536,087.16 and 91,168.38

Step by Step Solution

1. Step 1: Write the proportion equation
   357,401.34 : 536,087.16 = 91,168.38 : x
2. Step 2: Convert to fraction form
   357,401.34/536,087.16 = 91,168.38/x
3. Step 3: Cross multiply
   357,401.34x = 536,087.16 × 91,168.38
4. Step 4: Simplify right side
   357,401.34x = 48,874,197,916.00
5. Step 5: Solve for x
   x = 48,874,197,916.00/357,401.34
6. Step 6: Final answer
   x = 136,748.78