Finding the Fourth Proportional to 9,131.78, 12,601.82 and 5,152.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,131.78 : 12,601.82 = 5,152.88 : x
2. Step 2: Convert to fraction form
   9,131.78/12,601.82 = 5,152.88/x
3. Step 3: Cross multiply
   9,131.78x = 12,601.82 × 5,152.88
4. Step 4: Simplify right side
   9,131.78x = 64,935,577.47
5. Step 5: Solve for x
   x = 64,935,577.47/9,131.78
6. Step 6: Final answer
   x = 7,110.95