Finding the Fourth Proportional to 300,878,411.58, 415,271,754.90 and 195,162,839.46

Step by Step Solution

1. Step 1: Write the proportion equation
   300,878,411.58 : 415,271,754.90 = 195,162,839.46 : x
2. Step 2: Convert to fraction form
   300,878,411.58/415,271,754.90 = 195,162,839.46/x
3. Step 3: Cross multiply
   300,878,411.58x = 415,271,754.90 × 195,162,839.46
4. Step 4: Simplify right side
   300,878,411.58x = 81,045,614,833,821,168
5. Step 5: Solve for x
   x = 81,045,614,833,821,168/300,878,411.58
6. Step 6: Final answer
   x = 269,363,343.18