Finding the Fourth Proportional to 76,741.72, 115,129.05 and 43,477.72

Step by Step Solution

1. Step 1: Write the proportion equation
   76,741.72 : 115,129.05 = 43,477.72 : x
2. Step 2: Convert to fraction form
   76,741.72/115,129.05 = 43,477.72/x
3. Step 3: Cross multiply
   76,741.72x = 115,129.05 × 43,477.72
4. Step 4: Simplify right side
   76,741.72x = 5,005,548,599.77
5. Step 5: Solve for x
   x = 5,005,548,599.77/76,741.72
6. Step 6: Final answer
   x = 65,225.91