Finding the Fourth Proportional to 259,453,019.12, 358,045,194.72 and 141,978,374.24

Step by Step Solution

1. Step 1: Write the proportion equation
   259,453,019.12 : 358,045,194.72 = 141,978,374.24 : x
2. Step 2: Convert to fraction form
   259,453,019.12/358,045,194.72 = 141,978,374.24/x
3. Step 3: Cross multiply
   259,453,019.12x = 358,045,194.72 × 141,978,374.24
4. Step 4: Simplify right side
   259,453,019.12x = 50,834,674,650,789,840
5. Step 5: Solve for x
   x = 50,834,674,650,789,840/259,453,019.12
6. Step 6: Final answer
   x = 195,930,171.96