Finding the Fourth Proportional to 200,691,498.72, 277,073,004.96 and 126,415,726.32

Step by Step Solution

1. Step 1: Write the proportion equation
   200,691,498.72 : 277,073,004.96 = 126,415,726.32 : x
2. Step 2: Convert to fraction form
   200,691,498.72/277,073,004.96 = 126,415,726.32/x
3. Step 3: Cross multiply
   200,691,498.72x = 277,073,004.96 × 126,415,726.32
4. Step 4: Simplify right side
   200,691,498.72x = 35,026,385,165,683,356
5. Step 5: Solve for x
   x = 35,026,385,165,683,356/200,691,498.72
6. Step 6: Final answer
   x = 174,528,494.68