Finding the Fourth Proportional to 9,120.96, 12,585.24 and 5,343.93

Step by Step Solution

1. Step 1: Write the proportion equation
   9,120.96 : 12,585.24 = 5,343.93 : x
2. Step 2: Convert to fraction form
   9,120.96/12,585.24 = 5,343.93/x
3. Step 3: Cross multiply
   9,120.96x = 12,585.24 × 5,343.93
4. Step 4: Simplify right side
   9,120.96x = 67,254,641.59
5. Step 5: Solve for x
   x = 67,254,641.59/9,120.96
6. Step 6: Final answer
   x = 7,373.64