Finding the Fourth Proportional to 33,128,499.90, 49,694,434.65 and 10,409,619.90

Step by Step Solution

1. Step 1: Write the proportion equation
   33,128,499.90 : 49,694,434.65 = 10,409,619.90 : x
2. Step 2: Convert to fraction form
   33,128,499.90/49,694,434.65 = 10,409,619.90/x
3. Step 3: Cross multiply
   33,128,499.90x = 49,694,434.65 × 10,409,619.90
4. Step 4: Simplify right side
   33,128,499.90x = 517,300,175,851,889.56
5. Step 5: Solve for x
   x = 517,300,175,851,889.56/33,128,499.90
6. Step 6: Final answer
   x = 15,614,959.25