Finding the Fourth Proportional to 10,071.60, 13,899.28 and 5,595.36

Step by Step Solution

1. Step 1: Write the proportion equation
   10,071.60 : 13,899.28 = 5,595.36 : x
2. Step 2: Convert to fraction form
   10,071.60/13,899.28 = 5,595.36/x
3. Step 3: Cross multiply
   10,071.60x = 13,899.28 × 5,595.36
4. Step 4: Simplify right side
   10,071.60x = 77,771,475.34
5. Step 5: Solve for x
   x = 77,771,475.34/10,071.60
6. Step 6: Final answer
   x = 7,721.86