Finding the Fourth Proportional to 11,897.94, 16,416.06 and 7,180.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,897.94 : 16,416.06 = 7,180.50 : x
2. Step 2: Convert to fraction form
   11,897.94/16,416.06 = 7,180.50/x
3. Step 3: Cross multiply
   11,897.94x = 16,416.06 × 7,180.50
4. Step 4: Simplify right side
   11,897.94x = 117,875,518.83
5. Step 5: Solve for x
   x = 117,875,518.83/11,897.94
6. Step 6: Final answer
   x = 9,907.22