Finding the Fourth Proportional to 448,151,076.96, 618,451,188.72 and 249,925,100.28

Step by Step Solution

1. Step 1: Write the proportion equation
   448,151,076.96 : 618,451,188.72 = 249,925,100.28 : x
2. Step 2: Convert to fraction form
   448,151,076.96/618,451,188.72 = 249,925,100.28/x
3. Step 3: Cross multiply
   448,151,076.96x = 618,451,188.72 × 249,925,100.28
4. Step 4: Simplify right side
   448,151,076.96x = 154,566,475,359,131,200
5. Step 5: Solve for x
   x = 154,566,475,359,131,200/448,151,076.96
6. Step 6: Final answer
   x = 344,898,145.53