Finding the Fourth Proportional to 10,064.35, 13,888.83 and 5,588.11

Step by Step Solution

1. Step 1: Write the proportion equation
   10,064.35 : 13,888.83 = 5,588.11 : x
2. Step 2: Convert to fraction form
   10,064.35/13,888.83 = 5,588.11/x
3. Step 3: Cross multiply
   10,064.35x = 13,888.83 × 5,588.11
4. Step 4: Simplify right side
   10,064.35x = 77,612,309.81
5. Step 5: Solve for x
   x = 77,612,309.81/10,064.35
6. Step 6: Final answer
   x = 7,711.61