Finding the Fourth Proportional to 86,314,223.59, 129,489,997.79 and 45,918,836.71

Step by Step Solution

1. Step 1: Write the proportion equation
   86,314,223.59 : 129,489,997.79 = 45,918,836.71 : x
2. Step 2: Convert to fraction form
   86,314,223.59/129,489,997.79 = 45,918,836.71/x
3. Step 3: Cross multiply
   86,314,223.59x = 129,489,997.79 × 45,918,836.71
4. Step 4: Simplify right side
   86,314,223.59x = 5,946,030,064,097,271
5. Step 5: Solve for x
   x = 5,946,030,064,097,271/86,314,223.59
6. Step 6: Final answer
   x = 68,888,183.39