Finding the Fourth Proportional to 142,871.06, 214,291.53 and 58,640.10

Step by Step Solution

1. Step 1: Write the proportion equation
   142,871.06 : 214,291.53 = 58,640.10 : x
2. Step 2: Convert to fraction form
   142,871.06/214,291.53 = 58,640.10/x
3. Step 3: Cross multiply
   142,871.06x = 214,291.53 × 58,640.10
4. Step 4: Simplify right side
   142,871.06x = 12,566,076,748.35
5. Step 5: Solve for x
   x = 12,566,076,748.35/142,871.06
6. Step 6: Final answer
   x = 87,953.97