Finding the Fourth Proportional to 6,659.72, 9,978.54 and 5,972.93

Step by Step Solution

1. Step 1: Write the proportion equation
   6,659.72 : 9,978.54 = 5,972.93 : x
2. Step 2: Convert to fraction form
   6,659.72/9,978.54 = 5,972.93/x
3. Step 3: Cross multiply
   6,659.72x = 9,978.54 × 5,972.93
4. Step 4: Simplify right side
   6,659.72x = 59,601,071.03
5. Step 5: Solve for x
   x = 59,601,071.03/6,659.72
6. Step 6: Final answer
   x = 8,949.49