Finding the Fourth Proportional to 468,404,469.63, 646,402,018.23 and 259,564,099.86

Step by Step Solution

1. Step 1: Write the proportion equation
   468,404,469.63 : 646,402,018.23 = 259,564,099.86 : x
2. Step 2: Convert to fraction form
   468,404,469.63/646,402,018.23 = 259,564,099.86/x
3. Step 3: Cross multiply
   468,404,469.63x = 646,402,018.23 × 259,564,099.86
4. Step 4: Simplify right side
   468,404,469.63x = 167,782,758,009,557,280
5. Step 5: Solve for x
   x = 167,782,758,009,557,280/468,404,469.63
6. Step 6: Final answer
   x = 358,200,591.34