Finding the Fourth Proportional to 79,081,996.90, 118,640,882.28 and 42,689,606.12

Step by Step Solution

1. Step 1: Write the proportion equation
   79,081,996.90 : 118,640,882.28 = 42,689,606.12 : x
2. Step 2: Convert to fraction form
   79,081,996.90/118,640,882.28 = 42,689,606.12/x
3. Step 3: Cross multiply
   79,081,996.90x = 118,640,882.28 × 42,689,606.12
4. Step 4: Simplify right side
   79,081,996.90x = 5,064,732,534,262,487
5. Step 5: Solve for x
   x = 5,064,732,534,262,487/79,081,996.90
6. Step 6: Final answer
   x = 64,044,064.80