Finding the Fourth Proportional to 8,748.52, 13,117.95 and 5,978.32

Step by Step Solution

1. Step 1: Write the proportion equation
   8,748.52 : 13,117.95 = 5,978.32 : x
2. Step 2: Convert to fraction form
   8,748.52/13,117.95 = 5,978.32/x
3. Step 3: Cross multiply
   8,748.52x = 13,117.95 × 5,978.32
4. Step 4: Simplify right side
   8,748.52x = 78,423,302.84
5. Step 5: Solve for x
   x = 78,423,302.84/8,748.52
6. Step 6: Final answer
   x = 8,964.18