Finding the Fourth Proportional to 116,992,740.07, 161,448,003.52 and 64,780,651.99

Step by Step Solution

1. Step 1: Write the proportion equation
   116,992,740.07 : 161,448,003.52 = 64,780,651.99 : x
2. Step 2: Convert to fraction form
   116,992,740.07/161,448,003.52 = 64,780,651.99/x
3. Step 3: Cross multiply
   116,992,740.07x = 161,448,003.52 × 64,780,651.99
4. Step 4: Simplify right side
   116,992,740.07x = 10,458,706,930,509,416
5. Step 5: Solve for x
   x = 10,458,706,930,509,416/116,992,740.07
6. Step 6: Final answer
   x = 89,396,204.62