Finding the Fourth Proportional to 91,048.71, 136,568.20 and 34,915.71

Step by Step Solution

1. Step 1: Write the proportion equation
   91,048.71 : 136,568.20 = 34,915.71 : x
2. Step 2: Convert to fraction form
   91,048.71/136,568.20 = 34,915.71/x
3. Step 3: Cross multiply
   91,048.71x = 136,568.20 × 34,915.71
4. Step 4: Simplify right side
   91,048.71x = 4,768,375,666.42
5. Step 5: Solve for x
   x = 4,768,375,666.42/91,048.71
6. Step 6: Final answer
   x = 52,371.70