Finding the Fourth Proportional to 300,596,741.37, 450,907,019.69 and 142,991,898.57

Step by Step Solution

1. Step 1: Write the proportion equation
   300,596,741.37 : 450,907,019.69 = 142,991,898.57 : x
2. Step 2: Convert to fraction form
   300,596,741.37/450,907,019.69 = 142,991,898.57/x
3. Step 3: Cross multiply
   300,596,741.37x = 450,907,019.69 × 142,991,898.57
4. Step 4: Simplify right side
   300,596,741.37x = 64,476,050,823,298,512
5. Step 5: Solve for x
   x = 64,476,050,823,298,512/300,596,741.37
6. Step 6: Final answer
   x = 214,493,512.24