Finding the Fourth Proportional to 13,258,814.50, 19,888,165.05 and 3,674,165.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,258,814.50 : 19,888,165.05 = 3,674,165.50 : x
2. Step 2: Convert to fraction form
   13,258,814.50/19,888,165.05 = 3,674,165.50/x
3. Step 3: Cross multiply
   13,258,814.50x = 19,888,165.05 × 3,674,165.50
4. Step 4: Simplify right side
   13,258,814.50x = 73,072,409,885,015.78
5. Step 5: Solve for x
   x = 73,072,409,885,015.78/13,258,814.50
6. Step 6: Final answer
   x = 5,511,232.54