Finding the Fourth Proportional to 142,081,821.16, 196,072,914.52 and 76,891,725.16

Step by Step Solution

1. Step 1: Write the proportion equation
   142,081,821.16 : 196,072,914.52 = 76,891,725.16 : x
2. Step 2: Convert to fraction form
   142,081,821.16/196,072,914.52 = 76,891,725.16/x
3. Step 3: Cross multiply
   142,081,821.16x = 196,072,914.52 × 76,891,725.16
4. Step 4: Simplify right side
   142,081,821.16x = 15,076,384,654,592,014
5. Step 5: Solve for x
   x = 15,076,384,654,592,014/142,081,821.16
6. Step 6: Final answer
   x = 106,110,581.43