Finding the Fourth Proportional to 31,953.31, 47,915.29 and 10,884.78

Step by Step Solution

1. Step 1: Write the proportion equation
   31,953.31 : 47,915.29 = 10,884.78 : x
2. Step 2: Convert to fraction form
   31,953.31/47,915.29 = 10,884.78/x
3. Step 3: Cross multiply
   31,953.31x = 47,915.29 × 10,884.78
4. Step 4: Simplify right side
   31,953.31x = 521,547,390.29
5. Step 5: Solve for x
   x = 521,547,390.29/31,953.31
6. Step 6: Final answer
   x = 16,322.17