Finding the Fourth Proportional to 142,748.10, 214,079.49 and 42,881.58

Step by Step Solution

1. Step 1: Write the proportion equation
   142,748.10 : 214,079.49 = 42,881.58 : x
2. Step 2: Convert to fraction form
   142,748.10/214,079.49 = 42,881.58/x
3. Step 3: Cross multiply
   142,748.10x = 214,079.49 × 42,881.58
4. Step 4: Simplify right side
   142,748.10x = 9,180,066,776.79
5. Step 5: Solve for x
   x = 9,180,066,776.79/142,748.10
6. Step 6: Final answer
   x = 64,309.55