Finding the Fourth Proportional to 76,606.72, 115,017.72 and 39,193.64

Step by Step Solution

1. Step 1: Write the proportion equation
   76,606.72 : 115,017.72 = 39,193.64 : x
2. Step 2: Convert to fraction form
   76,606.72/115,017.72 = 39,193.64/x
3. Step 3: Cross multiply
   76,606.72x = 115,017.72 × 39,193.64
4. Step 4: Simplify right side
   76,606.72x = 4,507,963,111.30
5. Step 5: Solve for x
   x = 4,507,963,111.30/76,606.72
6. Step 6: Final answer
   x = 58,845.53