Finding the Fourth Proportional to 56,626.93, 78,145.69 and 31,133.47

Step by Step Solution

1. Step 1: Write the proportion equation
   56,626.93 : 78,145.69 = 31,133.47 : x
2. Step 2: Convert to fraction form
   56,626.93/78,145.69 = 31,133.47/x
3. Step 3: Cross multiply
   56,626.93x = 78,145.69 × 31,133.47
4. Step 4: Simplify right side
   56,626.93x = 2,432,946,294.72
5. Step 5: Solve for x
   x = 2,432,946,294.72/56,626.93
6. Step 6: Final answer
   x = 42,964.48