Finding the Fourth Proportional to 17,886.30, 26,833.29 and 5,405.34

Step by Step Solution

1. Step 1: Write the proportion equation
   17,886.30 : 26,833.29 = 5,405.34 : x
2. Step 2: Convert to fraction form
   17,886.30/26,833.29 = 5,405.34/x
3. Step 3: Cross multiply
   17,886.30x = 26,833.29 × 5,405.34
4. Step 4: Simplify right side
   17,886.30x = 145,043,055.77
5. Step 5: Solve for x
   x = 145,043,055.77/17,886.30
6. Step 6: Final answer
   x = 8,109.17