Finding the Fourth Proportional to 142,815.91, 214,012.71 and 134,827.90

Step by Step Solution

1. Step 1: Write the proportion equation
   142,815.91 : 214,012.71 = 134,827.90 : x
2. Step 2: Convert to fraction form
   142,815.91/214,012.71 = 134,827.90/x
3. Step 3: Cross multiply
   142,815.91x = 214,012.71 × 134,827.90
4. Step 4: Simplify right side
   142,815.91x = 28,854,884,262.61
5. Step 5: Solve for x
   x = 28,854,884,262.61/142,815.91
6. Step 6: Final answer
   x = 202,042.51