Finding the Fourth Proportional to 12,941.88, 19,380.94 and 7,381.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,941.88 : 19,380.94 = 7,381.50 : x
2. Step 2: Convert to fraction form
   12,941.88/19,380.94 = 7,381.50/x
3. Step 3: Cross multiply
   12,941.88x = 19,380.94 × 7,381.50
4. Step 4: Simplify right side
   12,941.88x = 143,060,408.61
5. Step 5: Solve for x
   x = 143,060,408.61/12,941.88
6. Step 6: Final answer
   x = 11,054.07