Finding the Fourth Proportional to 72,634.17, 109,155.38 and 43,056.21

Step by Step Solution

1. Step 1: Write the proportion equation
   72,634.17 : 109,155.38 = 43,056.21 : x
2. Step 2: Convert to fraction form
   72,634.17/109,155.38 = 43,056.21/x
3. Step 3: Cross multiply
   72,634.17x = 109,155.38 × 43,056.21
4. Step 4: Simplify right side
   72,634.17x = 4,699,816,748.63
5. Step 5: Solve for x
   x = 4,699,816,748.63/72,634.17
6. Step 6: Final answer
   x = 64,705.31