Finding the Fourth Proportional to 142,394,112, 213,580,437.12 and 45,345,899.52

Step by Step Solution

1. Step 1: Write the proportion equation
   142,394,112 : 213,580,437.12 = 45,345,899.52 : x
2. Step 2: Convert to fraction form
   142,394,112/213,580,437.12 = 45,345,899.52/x
3. Step 3: Cross multiply
   142,394,112x = 213,580,437.12 × 45,345,899.52
4. Step 4: Simplify right side
   142,394,112x = 9,684,997,041,081,200
5. Step 5: Solve for x
   x = 9,684,997,041,081,200/142,394,112
6. Step 6: Final answer
   x = 68,015,431.99