Finding the Fourth Proportional to 235,978,699.68, 325,650,806.33 and 131,554,676.61

Step by Step Solution

1. Step 1: Write the proportion equation
   235,978,699.68 : 325,650,806.33 = 131,554,676.61 : x
2. Step 2: Convert to fraction form
   235,978,699.68/325,650,806.33 = 131,554,676.61/x
3. Step 3: Cross multiply
   235,978,699.68x = 325,650,806.33 × 131,554,676.61
4. Step 4: Simplify right side
   235,978,699.68x = 42,840,886,513,871,112
5. Step 5: Solve for x
   x = 42,840,886,513,871,112/235,978,699.68
6. Step 6: Final answer
   x = 181,545,565.65