Finding the Fourth Proportional to 8,407.30, 11,602.56 and 5,569.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,407.30 : 11,602.56 = 5,569.72 : x
2. Step 2: Convert to fraction form
   8,407.30/11,602.56 = 5,569.72/x
3. Step 3: Cross multiply
   8,407.30x = 11,602.56 × 5,569.72
4. Step 4: Simplify right side
   8,407.30x = 64,623,010.48
5. Step 5: Solve for x
   x = 64,623,010.48/8,407.30
6. Step 6: Final answer
   x = 7,686.54