Finding the Fourth Proportional to 142,915.84, 214,425.76 and 49,431.04

Step by Step Solution

1. Step 1: Write the proportion equation
   142,915.84 : 214,425.76 = 49,431.04 : x
2. Step 2: Convert to fraction form
   142,915.84/214,425.76 = 49,431.04/x
3. Step 3: Cross multiply
   142,915.84x = 214,425.76 × 49,431.04
4. Step 4: Simplify right side
   142,915.84x = 10,599,288,319.59
5. Step 5: Solve for x
   x = 10,599,288,319.59/142,915.84
6. Step 6: Final answer
   x = 74,164.55