Finding the Fourth Proportional to 141,200.17, 194,691.61 and 105,327.91

Step by Step Solution

1. Step 1: Write the proportion equation
   141,200.17 : 194,691.61 = 105,327.91 : x
2. Step 2: Convert to fraction form
   141,200.17/194,691.61 = 105,327.91/x
3. Step 3: Cross multiply
   141,200.17x = 194,691.61 × 105,327.91
4. Step 4: Simplify right side
   141,200.17x = 20,506,460,375.84
5. Step 5: Solve for x
   x = 20,506,460,375.84/141,200.17
6. Step 6: Final answer
   x = 145,229.71