Finding the Fourth Proportional to 142,010.08, 212,940.46 and 42,156.52

Step by Step Solution

1. Step 1: Write the proportion equation
   142,010.08 : 212,940.46 = 42,156.52 : x
2. Step 2: Convert to fraction form
   142,010.08/212,940.46 = 42,156.52/x
3. Step 3: Cross multiply
   142,010.08x = 212,940.46 × 42,156.52
4. Step 4: Simplify right side
   142,010.08x = 8,976,828,281.14
5. Step 5: Solve for x
   x = 8,976,828,281.14/142,010.08
6. Step 6: Final answer
   x = 63,212.61