Finding the Fourth Proportional to 10,659.48, 14,720.22 and 10,077.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,659.48 : 14,720.22 = 10,077.72 : x
2. Step 2: Convert to fraction form
   10,659.48/14,720.22 = 10,077.72/x
3. Step 3: Cross multiply
   10,659.48x = 14,720.22 × 10,077.72
4. Step 4: Simplify right side
   10,659.48x = 148,346,255.50
5. Step 5: Solve for x
   x = 148,346,255.50/10,659.48
6. Step 6: Final answer
   x = 13,916.84