Finding the Fourth Proportional to 13,069.22, 18,035.61 and 7,100.88

Step by Step Solution

1. Step 1: Write the proportion equation
   13,069.22 : 18,035.61 = 7,100.88 : x
2. Step 2: Convert to fraction form
   13,069.22/18,035.61 = 7,100.88/x
3. Step 3: Cross multiply
   13,069.22x = 18,035.61 × 7,100.88
4. Step 4: Simplify right side
   13,069.22x = 128,068,702.34
5. Step 5: Solve for x
   x = 128,068,702.34/13,069.22
6. Step 6: Final answer
   x = 9,799.27