Finding the Fourth Proportional to 84,123,100.41, 126,078,507.11 and 42,634,401.12

Step by Step Solution

1. Step 1: Write the proportion equation
   84,123,100.41 : 126,078,507.11 = 42,634,401.12 : x
2. Step 2: Convert to fraction form
   84,123,100.41/126,078,507.11 = 42,634,401.12/x
3. Step 3: Cross multiply
   84,123,100.41x = 126,078,507.11 × 42,634,401.12
4. Step 4: Simplify right side
   84,123,100.41x = 5,375,281,644,525,340
5. Step 5: Solve for x
   x = 5,375,281,644,525,340/84,123,100.41
6. Step 6: Final answer
   x = 63,897,807.12