Finding the Fourth Proportional to 13,585.68, 18,748.71 and 7,924.05

Step by Step Solution

1. Step 1: Write the proportion equation
   13,585.68 : 18,748.71 = 7,924.05 : x
2. Step 2: Convert to fraction form
   13,585.68/18,748.71 = 7,924.05/x
3. Step 3: Cross multiply
   13,585.68x = 18,748.71 × 7,924.05
4. Step 4: Simplify right side
   13,585.68x = 148,565,715.48
5. Step 5: Solve for x
   x = 148,565,715.48/13,585.68
6. Step 6: Final answer
   x = 10,935.46