Finding the Fourth Proportional to 10,051.76, 13,870.94 and 5,575.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,051.76 : 13,870.94 = 5,575.40 : x
2. Step 2: Convert to fraction form
   10,051.76/13,870.94 = 5,575.40/x
3. Step 3: Cross multiply
   10,051.76x = 13,870.94 × 5,575.40
4. Step 4: Simplify right side
   10,051.76x = 77,335,941.64
5. Step 5: Solve for x
   x = 77,335,941.64/10,051.76
6. Step 6: Final answer
   x = 7,693.78