Finding the Fourth Proportional to 10,051.57, 13,870.74 and 5,575.51

Step by Step Solution

1. Step 1: Write the proportion equation
   10,051.57 : 13,870.74 = 5,575.51 : x
2. Step 2: Convert to fraction form
   10,051.57/13,870.74 = 5,575.51/x
3. Step 3: Cross multiply
   10,051.57x = 13,870.74 × 5,575.51
4. Step 4: Simplify right side
   10,051.57x = 77,336,449.58
5. Step 5: Solve for x
   x = 77,336,449.58/10,051.57
6. Step 6: Final answer
   x = 7,693.97