Finding the Fourth Proportional to 42,146.71, 63,171.47 and 15,834.67

Step by Step Solution

1. Step 1: Write the proportion equation
   42,146.71 : 63,171.47 = 15,834.67 : x
2. Step 2: Convert to fraction form
   42,146.71/63,171.47 = 15,834.67/x
3. Step 3: Cross multiply
   42,146.71x = 63,171.47 × 15,834.67
4. Step 4: Simplify right side
   42,146.71x = 1,000,299,301.69
5. Step 5: Solve for x
   x = 1,000,299,301.69/42,146.71
6. Step 6: Final answer
   x = 23,733.75