Finding the Fourth Proportional to 10,555.51, 15,830.89 and 3,159.02

Step by Step Solution

1. Step 1: Write the proportion equation
   10,555.51 : 15,830.89 = 3,159.02 : x
2. Step 2: Convert to fraction form
   10,555.51/15,830.89 = 3,159.02/x
3. Step 3: Cross multiply
   10,555.51x = 15,830.89 × 3,159.02
4. Step 4: Simplify right side
   10,555.51x = 50,010,003.18
5. Step 5: Solve for x
   x = 50,010,003.18/10,555.51
6. Step 6: Final answer
   x = 4,737.81