Finding the Fourth Proportional to 9,131.70, 12,601.53 and 5,152.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,131.70 : 12,601.53 = 5,152.98 : x
2. Step 2: Convert to fraction form
   9,131.70/12,601.53 = 5,152.98/x
3. Step 3: Cross multiply
   9,131.70x = 12,601.53 × 5,152.98
4. Step 4: Simplify right side
   9,131.70x = 64,935,432.06
5. Step 5: Solve for x
   x = 64,935,432.06/9,131.70
6. Step 6: Final answer
   x = 7,110.99