Finding the Fourth Proportional to 298,936,516.10, 448,404,774.15 and 83,525,764.10

Step by Step Solution

1. Step 1: Write the proportion equation
   298,936,516.10 : 448,404,774.15 = 83,525,764.10 : x
2. Step 2: Convert to fraction form
   298,936,516.10/448,404,774.15 = 83,525,764.10/x
3. Step 3: Cross multiply
   298,936,516.10x = 448,404,774.15 × 83,525,764.10
4. Step 4: Simplify right side
   298,936,516.10x = 37,453,351,386,966,672
5. Step 5: Solve for x
   x = 37,453,351,386,966,672/298,936,516.10
6. Step 6: Final answer
   x = 125,288,646.15