Finding the Fourth Proportional to 9,977.94, 14,953.86 and 7,213.86

Step by Step Solution

1. Step 1: Write the proportion equation
   9,977.94 : 14,953.86 = 7,213.86 : x
2. Step 2: Convert to fraction form
   9,977.94/14,953.86 = 7,213.86/x
3. Step 3: Cross multiply
   9,977.94x = 14,953.86 × 7,213.86
4. Step 4: Simplify right side
   9,977.94x = 107,875,052.50
5. Step 5: Solve for x
   x = 107,875,052.50/9,977.94
6. Step 6: Final answer
   x = 10,811.36