Finding the Fourth Proportional to 12,092.55, 16,691.20 and 7,312.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,092.55 : 16,691.20 = 7,312.50 : x
2. Step 2: Convert to fraction form
   12,092.55/16,691.20 = 7,312.50/x
3. Step 3: Cross multiply
   12,092.55x = 16,691.20 × 7,312.50
4. Step 4: Simplify right side
   12,092.55x = 122,054,381.72
5. Step 5: Solve for x
   x = 122,054,381.72/12,092.55
6. Step 6: Final answer
   x = 10,093.36