Finding the Fourth Proportional to 173,152,464.87, 259,730,378.82 and 138,522,837.45

Step by Step Solution

1. Step 1: Write the proportion equation
   173,152,464.87 : 259,730,378.82 = 138,522,837.45 : x
2. Step 2: Convert to fraction form
   173,152,464.87/259,730,378.82 = 138,522,837.45/x
3. Step 3: Cross multiply
   173,152,464.87x = 259,730,378.82 × 138,522,837.45
4. Step 4: Simplify right side
   173,152,464.87x = 35,978,589,046,109,780
5. Step 5: Solve for x
   x = 35,978,589,046,109,780/173,152,464.87
6. Step 6: Final answer
   x = 207,785,601.40