Finding the Fourth Proportional to 102,449.94, 141,300.72 and 66,651.36

Step by Step Solution

1. Step 1: Write the proportion equation
   102,449.94 : 141,300.72 = 66,651.36 : x
2. Step 2: Convert to fraction form
   102,449.94/141,300.72 = 66,651.36/x
3. Step 3: Cross multiply
   102,449.94x = 141,300.72 × 66,651.36
4. Step 4: Simplify right side
   102,449.94x = 9,417,885,156.98
5. Step 5: Solve for x
   x = 9,417,885,156.98/102,449.94
6. Step 6: Final answer
   x = 91,926.70