Finding the Fourth Proportional to 86,152,493, 129,229,865.12 and 28,644,764.16

Step by Step Solution

1. Step 1: Write the proportion equation
   86,152,493 : 129,229,865.12 = 28,644,764.16 : x
2. Step 2: Convert to fraction form
   86,152,493/129,229,865.12 = 28,644,764.16/x
3. Step 3: Cross multiply
   86,152,493x = 129,229,865.12 × 28,644,764.16
4. Step 4: Simplify right side
   86,152,493x = 3,701,759,008,791,010.50
5. Step 5: Solve for x
   x = 3,701,759,008,791,010.50/86,152,493
6. Step 6: Final answer
   x = 42,967,520.50