Finding the Fourth Proportional to 298,957,068.10, 448,435,602.15 and 298,957,068.10

Step by Step Solution

1. Step 1: Write the proportion equation
   298,957,068.10 : 448,435,602.15 = 298,957,068.10 : x
2. Step 2: Convert to fraction form
   298,957,068.10/448,435,602.15 = 298,957,068.10/x
3. Step 3: Cross multiply
   298,957,068.10x = 448,435,602.15 × 298,957,068.10
4. Step 4: Simplify right side
   298,957,068.10x = 134,062,992,850,422,064
5. Step 5: Solve for x
   x = 134,062,992,850,422,064/298,957,068.10
6. Step 6: Final answer
   x = 448,435,602.15