Finding the Fourth Proportional to 56,636,986,018.89, 78,159,048,356.54 and 31,262,462,139.18

Step by Step Solution

1. Step 1: Write the proportion equation
   56,636,986,018.89 : 78,159,048,356.54 = 31,262,462,139.18 : x
2. Step 2: Convert to fraction form
   56,636,986,018.89/78,159,048,356.54 = 31,262,462,139.18/x
3. Step 3: Cross multiply
   56,636,986,018.89x = 78,159,048,356.54 × 31,262,462,139.18
4. Step 4: Simplify right side
   56,636,986,018.89x = 2,443,444,290,080,670,220,288
5. Step 5: Solve for x
   x = 2,443,444,290,080,670,220,288/56,636,986,018.89
6. Step 6: Final answer
   x = 43,142,201,974.97