Finding the Fourth Proportional to 35,117.72, 52,681.83 and 12,929.39

Step by Step Solution

1. Step 1: Write the proportion equation
   35,117.72 : 52,681.83 = 12,929.39 : x
2. Step 2: Convert to fraction form
   35,117.72/52,681.83 = 12,929.39/x
3. Step 3: Cross multiply
   35,117.72x = 52,681.83 × 12,929.39
4. Step 4: Simplify right side
   35,117.72x = 681,143,811.65
5. Step 5: Solve for x
   x = 681,143,811.65/35,117.72
6. Step 6: Final answer
   x = 19,396.02