Finding the Fourth Proportional to 56,636,986,016.39, 78,159,048,353.08 and 31,262,462,136.68

Step by Step Solution

1. Step 1: Write the proportion equation
   56,636,986,016.39 : 78,159,048,353.08 = 31,262,462,136.68 : x
2. Step 2: Convert to fraction form
   56,636,986,016.39/78,159,048,353.08 = 31,262,462,136.68/x
3. Step 3: Cross multiply
   56,636,986,016.39x = 78,159,048,353.08 × 31,262,462,136.68
4. Step 4: Simplify right side
   56,636,986,016.39x = 2,443,444,289,776,619,880,448
5. Step 5: Solve for x
   x = 2,443,444,289,776,619,880,448/56,636,986,016.39
6. Step 6: Final answer
   x = 43,142,201,971.51