Finding the Fourth Proportional to 171,700,546.71, 257,656,755.64 and 79,567,111.67

Step by Step Solution

1. Step 1: Write the proportion equation
   171,700,546.71 : 257,656,755.64 = 79,567,111.67 : x
2. Step 2: Convert to fraction form
   171,700,546.71/257,656,755.64 = 79,567,111.67/x
3. Step 3: Cross multiply
   171,700,546.71x = 257,656,755.64 × 79,567,111.67
4. Step 4: Simplify right side
   171,700,546.71x = 20,501,003,848,139,948
5. Step 5: Solve for x
   x = 20,501,003,848,139,948/171,700,546.71
6. Step 6: Final answer
   x = 119,399,758.72