Finding the Fourth Proportional to 31,818.50, 47,719.86 and 10,758.08

Step by Step Solution

1. Step 1: Write the proportion equation
   31,818.50 : 47,719.86 = 10,758.08 : x
2. Step 2: Convert to fraction form
   31,818.50/47,719.86 = 10,758.08/x
3. Step 3: Cross multiply
   31,818.50x = 47,719.86 × 10,758.08
4. Step 4: Simplify right side
   31,818.50x = 513,374,071.47
5. Step 5: Solve for x
   x = 513,374,071.47/31,818.50
6. Step 6: Final answer
   x = 16,134.45