Finding the Fourth Proportional to 56,011.83, 77,293.27 and 31,812.20

Step by Step Solution

1. Step 1: Write the proportion equation
   56,011.83 : 77,293.27 = 31,812.20 : x
2. Step 2: Convert to fraction form
   56,011.83/77,293.27 = 31,812.20/x
3. Step 3: Cross multiply
   56,011.83x = 77,293.27 × 31,812.20
4. Step 4: Simplify right side
   56,011.83x = 2,458,868,963.89
5. Step 5: Solve for x
   x = 2,458,868,963.89/56,011.83
6. Step 6: Final answer
   x = 43,899.10