Finding the Fourth Proportional to 200,123,552.34, 276,155,423.55 and 121,798,449.15

Step by Step Solution

1. Step 1: Write the proportion equation
   200,123,552.34 : 276,155,423.55 = 121,798,449.15 : x
2. Step 2: Convert to fraction form
   200,123,552.34/276,155,423.55 = 121,798,449.15/x
3. Step 3: Cross multiply
   200,123,552.34x = 276,155,423.55 × 121,798,449.15
4. Step 4: Simplify right side
   200,123,552.34x = 33,635,302,312,751,392
5. Step 5: Solve for x
   x = 33,635,302,312,751,392/200,123,552.34
6. Step 6: Final answer
   x = 168,072,682.70