Finding the Fourth Proportional to 53,236,836.72, 73,467,056.06 and 28,790,550.72

Step by Step Solution

1. Step 1: Write the proportion equation
   53,236,836.72 : 73,467,056.06 = 28,790,550.72 : x
2. Step 2: Convert to fraction form
   53,236,836.72/73,467,056.06 = 28,790,550.72/x
3. Step 3: Cross multiply
   53,236,836.72x = 73,467,056.06 × 28,790,550.72
4. Step 4: Simplify right side
   53,236,836.72x = 2,115,157,003,744,513.25
5. Step 5: Solve for x
   x = 2,115,157,003,744,513.25/53,236,836.72
6. Step 6: Final answer
   x = 39,731,079.72