Finding the Fourth Proportional to 72,415.59, 99,914.74 and 43,712.56

Step by Step Solution

1. Step 1: Write the proportion equation
   72,415.59 : 99,914.74 = 43,712.56 : x
2. Step 2: Convert to fraction form
   72,415.59/99,914.74 = 43,712.56/x
3. Step 3: Cross multiply
   72,415.59x = 99,914.74 × 43,712.56
4. Step 4: Simplify right side
   72,415.59x = 4,367,529,067.13
5. Step 5: Solve for x
   x = 4,367,529,067.13/72,415.59
6. Step 6: Final answer
   x = 60,312.00