Finding the Fourth Proportional to 51,415,155.78, 70,952,907.30 and 29,389,128.15

Step by Step Solution

1. Step 1: Write the proportion equation
   51,415,155.78 : 70,952,907.30 = 29,389,128.15 : x
2. Step 2: Convert to fraction form
   51,415,155.78/70,952,907.30 = 29,389,128.15/x
3. Step 3: Cross multiply
   51,415,155.78x = 70,952,907.30 × 29,389,128.15
4. Step 4: Simplify right side
   51,415,155.78x = 2,085,244,085,410,634.50
5. Step 5: Solve for x
   x = 2,085,244,085,410,634.50/51,415,155.78
6. Step 6: Final answer
   x = 40,556,992.47