Finding the Fourth Proportional to 56,646.72, 78,174.16 and 32,780.88

Step by Step Solution

1. Step 1: Write the proportion equation
   56,646.72 : 78,174.16 = 32,780.88 : x
2. Step 2: Convert to fraction form
   56,646.72/78,174.16 = 32,780.88/x
3. Step 3: Cross multiply
   56,646.72x = 78,174.16 × 32,780.88
4. Step 4: Simplify right side
   56,646.72x = 2,562,617,758.06
5. Step 5: Solve for x
   x = 2,562,617,758.06/56,646.72
6. Step 6: Final answer
   x = 45,238.59