Finding the Fourth Proportional to 142,664,267.10, 213,928,941.75 and 55,266,718.72

Step by Step Solution

1. Step 1: Write the proportion equation
   142,664,267.10 : 213,928,941.75 = 55,266,718.72 : x
2. Step 2: Convert to fraction form
   142,664,267.10/213,928,941.75 = 55,266,718.72/x
3. Step 3: Cross multiply
   142,664,267.10x = 213,928,941.75 × 55,266,718.72
4. Step 4: Simplify right side
   142,664,267.10x = 11,823,150,649,423,558
5. Step 5: Solve for x
   x = 11,823,150,649,423,558/142,664,267.10
6. Step 6: Final answer
   x = 82,873,945.17