Finding the Fourth Proportional to 72,415.05, 99,927.32 and 40,577.82

Step by Step Solution

1. Step 1: Write the proportion equation
   72,415.05 : 99,927.32 = 40,577.82 : x
2. Step 2: Convert to fraction form
   72,415.05/99,927.32 = 40,577.82/x
3. Step 3: Cross multiply
   72,415.05x = 99,927.32 × 40,577.82
4. Step 4: Simplify right side
   72,415.05x = 4,054,832,601.15
5. Step 5: Solve for x
   x = 4,054,832,601.15/72,415.05
6. Step 6: Final answer
   x = 55,994.34