Finding the Fourth Proportional to 142,663.28, 214,030.52 and 42,825.32

Step by Step Solution

1. Step 1: Write the proportion equation
   142,663.28 : 214,030.52 = 42,825.32 : x
2. Step 2: Convert to fraction form
   142,663.28/214,030.52 = 42,825.32/x
3. Step 3: Cross multiply
   142,663.28x = 214,030.52 × 42,825.32
4. Step 4: Simplify right side
   142,663.28x = 9,165,925,508.77
5. Step 5: Solve for x
   x = 9,165,925,508.77/142,663.28
6. Step 6: Final answer
   x = 64,248.67