Finding the Fourth Proportional to 71,784.78, 99,066.51 and 43,493.10

Step by Step Solution

1. Step 1: Write the proportion equation
   71,784.78 : 99,066.51 = 43,493.10 : x
2. Step 2: Convert to fraction form
   71,784.78/99,066.51 = 43,493.10/x
3. Step 3: Cross multiply
   71,784.78x = 99,066.51 × 43,493.10
4. Step 4: Simplify right side
   71,784.78x = 4,308,709,626.08
5. Step 5: Solve for x
   x = 4,308,709,626.08/71,784.78
6. Step 6: Final answer
   x = 60,022.61