Finding the Fourth Proportional to 72,003,011.94, 99,364,757.42 and 42,251,450.31

Step by Step Solution

1. Step 1: Write the proportion equation
   72,003,011.94 : 99,364,757.42 = 42,251,450.31 : x
2. Step 2: Convert to fraction form
   72,003,011.94/99,364,757.42 = 42,251,450.31/x
3. Step 3: Cross multiply
   72,003,011.94x = 99,364,757.42 × 42,251,450.31
4. Step 4: Simplify right side
   72,003,011.94x = 4,198,305,110,485,077
5. Step 5: Solve for x
   x = 4,198,305,110,485,077/72,003,011.94
6. Step 6: Final answer
   x = 58,307,354.06