Finding the Fourth Proportional to 56,560.69, 78,049.20 and 32,688.91

Step by Step Solution

1. Step 1: Write the proportion equation
   56,560.69 : 78,049.20 = 32,688.91 : x
2. Step 2: Convert to fraction form
   56,560.69/78,049.20 = 32,688.91/x
3. Step 3: Cross multiply
   56,560.69x = 78,049.20 × 32,688.91
4. Step 4: Simplify right side
   56,560.69x = 2,551,343,274.37
5. Step 5: Solve for x
   x = 2,551,343,274.37/56,560.69
6. Step 6: Final answer
   x = 45,108.06