Finding the Fourth Proportional to 30,720,820.05, 42,396,018.98 and 17,668,087.81

Step by Step Solution

1. Step 1: Write the proportion equation
   30,720,820.05 : 42,396,018.98 = 17,668,087.81 : x
2. Step 2: Convert to fraction form
   30,720,820.05/42,396,018.98 = 17,668,087.81/x
3. Step 3: Cross multiply
   30,720,820.05x = 42,396,018.98 × 17,668,087.81
4. Step 4: Simplify right side
   30,720,820.05x = 749,056,585,938,736.25
5. Step 5: Solve for x
   x = 749,056,585,938,736.25/30,720,820.05
6. Step 6: Final answer
   x = 24,382,701.53