Finding the Fourth Proportional to 78,724,680.05, 118,086,599.59 and 20,432,315.48

Step by Step Solution

1. Step 1: Write the proportion equation
   78,724,680.05 : 118,086,599.59 = 20,432,315.48 : x
2. Step 2: Convert to fraction form
   78,724,680.05/118,086,599.59 = 20,432,315.48/x
3. Step 3: Cross multiply
   78,724,680.05x = 118,086,599.59 × 20,432,315.48
4. Step 4: Simplify right side
   78,724,680.05x = 2,412,782,657,052,995
5. Step 5: Solve for x
   x = 2,412,782,657,052,995/78,724,680.05
6. Step 6: Final answer
   x = 30,648,364.09