Finding the Fourth Proportional to 193,156.72, 266,541.72 and 108,271.60

Step by Step Solution

1. Step 1: Write the proportion equation
   193,156.72 : 266,541.72 = 108,271.60 : x
2. Step 2: Convert to fraction form
   193,156.72/266,541.72 = 108,271.60/x
3. Step 3: Cross multiply
   193,156.72x = 266,541.72 × 108,271.60
4. Step 4: Simplify right side
   193,156.72x = 28,858,898,491.15
5. Step 5: Solve for x
   x = 28,858,898,491.15/193,156.72
6. Step 6: Final answer
   x = 149,406.65