Finding the Fourth Proportional to 8,699.57, 12,006.72 and 5,342.93

Step by Step Solution

1. Step 1: Write the proportion equation
   8,699.57 : 12,006.72 = 5,342.93 : x
2. Step 2: Convert to fraction form
   8,699.57/12,006.72 = 5,342.93/x
3. Step 3: Cross multiply
   8,699.57x = 12,006.72 × 5,342.93
4. Step 4: Simplify right side
   8,699.57x = 64,151,004.46
5. Step 5: Solve for x
   x = 64,151,004.46/8,699.57
6. Step 6: Final answer
   x = 7,374.05