Finding the Fourth Proportional to 142,314.32, 213,508.44 and 42,474.51

Step by Step Solution

1. Step 1: Write the proportion equation
   142,314.32 : 213,508.44 = 42,474.51 : x
2. Step 2: Convert to fraction form
   142,314.32/213,508.44 = 42,474.51/x
3. Step 3: Cross multiply
   142,314.32x = 213,508.44 × 42,474.51
4. Step 4: Simplify right side
   142,314.32x = 9,068,666,369.86
5. Step 5: Solve for x
   x = 9,068,666,369.86/142,314.32
6. Step 6: Final answer
   x = 63,722.80