Finding the Fourth Proportional to 142,366.32, 213,937.47 and 75,853.98

Step by Step Solution

1. Step 1: Write the proportion equation
   142,366.32 : 213,937.47 = 75,853.98 : x
2. Step 2: Convert to fraction form
   142,366.32/213,937.47 = 75,853.98/x
3. Step 3: Cross multiply
   142,366.32x = 213,937.47 × 75,853.98
4. Step 4: Simplify right side
   142,366.32x = 16,228,008,570.63
5. Step 5: Solve for x
   x = 16,228,008,570.63/142,366.32
6. Step 6: Final answer
   x = 113,987.69