Finding the Fourth Proportional to 42,900,341.10, 64,350,511.65 and 42,900,341.10

Step by Step Solution

1. Step 1: Write the proportion equation
   42,900,341.10 : 64,350,511.65 = 42,900,341.10 : x
2. Step 2: Convert to fraction form
   42,900,341.10/64,350,511.65 = 42,900,341.10/x
3. Step 3: Cross multiply
   42,900,341.10x = 64,350,511.65 × 42,900,341.10
4. Step 4: Simplify right side
   42,900,341.10x = 2,760,658,899,744,524
5. Step 5: Solve for x
   x = 2,760,658,899,744,524/42,900,341.10
6. Step 6: Final answer
   x = 64,350,511.65