Finding the Fourth Proportional to 42,728,612.70, 58,965,405.72 and 23,149,987.68

Step by Step Solution

1. Step 1: Write the proportion equation
   42,728,612.70 : 58,965,405.72 = 23,149,987.68 : x
2. Step 2: Convert to fraction form
   42,728,612.70/58,965,405.72 = 23,149,987.68/x
3. Step 3: Cross multiply
   42,728,612.70x = 58,965,405.72 × 23,149,987.68
4. Step 4: Simplify right side
   42,728,612.70x = 1,365,048,415,964,201.50
5. Step 5: Solve for x
   x = 1,365,048,415,964,201.50/42,728,612.70
6. Step 6: Final answer
   x = 31,946,939.76