Finding the Fourth Proportional to 56,576.51, 78,078.06 and 31,426.01

Step by Step Solution

1. Step 1: Write the proportion equation
   56,576.51 : 78,078.06 = 31,426.01 : x
2. Step 2: Convert to fraction form
   56,576.51/78,078.06 = 31,426.01/x
3. Step 3: Cross multiply
   56,576.51x = 78,078.06 × 31,426.01
4. Step 4: Simplify right side
   56,576.51x = 2,453,681,737.21
5. Step 5: Solve for x
   x = 2,453,681,737.21/56,576.51
6. Step 6: Final answer
   x = 43,369.27