Finding the Fourth Proportional to 142,655.86, 214,004.58 and 42,823.90

Step by Step Solution

1. Step 1: Write the proportion equation
   142,655.86 : 214,004.58 = 42,823.90 : x
2. Step 2: Convert to fraction form
   142,655.86/214,004.58 = 42,823.90/x
3. Step 3: Cross multiply
   142,655.86x = 214,004.58 × 42,823.90
4. Step 4: Simplify right side
   142,655.86x = 9,164,510,733.46
5. Step 5: Solve for x
   x = 9,164,510,733.46/142,655.86
6. Step 6: Final answer
   x = 64,242.09