Finding the Fourth Proportional to 14,131.80, 19,502.12 and 7,758.98

Step by Step Solution

1. Step 1: Write the proportion equation
   14,131.80 : 19,502.12 = 7,758.98 : x
2. Step 2: Convert to fraction form
   14,131.80/19,502.12 = 7,758.98/x
3. Step 3: Cross multiply
   14,131.80x = 19,502.12 × 7,758.98
4. Step 4: Simplify right side
   14,131.80x = 151,316,559.04
5. Step 5: Solve for x
   x = 151,316,559.04/14,131.80
6. Step 6: Final answer
   x = 10,707.52