Finding the Fourth Proportional to 34,390.56, 51,516.72 and 17,940

Step by Step Solution

1. Step 1: Write the proportion equation
   34,390.56 : 51,516.72 = 17,940 : x
2. Step 2: Convert to fraction form
   34,390.56/51,516.72 = 17,940/x
3. Step 3: Cross multiply
   34,390.56x = 51,516.72 × 17,940
4. Step 4: Simplify right side
   34,390.56x = 924,209,956.80
5. Step 5: Solve for x
   x = 924,209,956.80/34,390.56
6. Step 6: Final answer
   x = 26,873.94