Finding the Fourth Proportional to 13,095.61, 18,071.89 and 7,127.17

Step by Step Solution

1. Step 1: Write the proportion equation
   13,095.61 : 18,071.89 = 7,127.17 : x
2. Step 2: Convert to fraction form
   13,095.61/18,071.89 = 7,127.17/x
3. Step 3: Cross multiply
   13,095.61x = 18,071.89 × 7,127.17
4. Step 4: Simplify right side
   13,095.61x = 128,801,432.25
5. Step 5: Solve for x
   x = 128,801,432.25/13,095.61
6. Step 6: Final answer
   x = 9,835.47