Finding the Fourth Proportional to 56,636,985,279.68, 78,159,047,338.72 and 31,262,461,399.97

Step by Step Solution

1. Step 1: Write the proportion equation
   56,636,985,279.68 : 78,159,047,338.72 = 31,262,461,399.97 : x
2. Step 2: Convert to fraction form
   56,636,985,279.68/78,159,047,338.72 = 31,262,461,399.97/x
3. Step 3: Cross multiply
   56,636,985,279.68x = 78,159,047,338.72 × 31,262,461,399.97
4. Step 4: Simplify right side
   56,636,985,279.68x = 2,443,444,200,485,162,057,728
5. Step 5: Solve for x
   x = 2,443,444,200,485,162,057,728/56,636,985,279.68
6. Step 6: Final answer
   x = 43,142,200,956.13