Finding the Fourth Proportional to 608,404,063.05, 912,478,389.48 and 171,602,597.79

Step by Step Solution

1. Step 1: Write the proportion equation
   608,404,063.05 : 912,478,389.48 = 171,602,597.79 : x
2. Step 2: Convert to fraction form
   608,404,063.05/912,478,389.48 = 171,602,597.79/x
3. Step 3: Cross multiply
   608,404,063.05x = 912,478,389.48 × 171,602,597.79
4. Step 4: Simplify right side
   608,404,063.05x = 156,583,662,062,003,392
5. Step 5: Solve for x
   x = 156,583,662,062,003,392/608,404,063.05
6. Step 6: Final answer
   x = 257,367,876.99