Finding the Fourth Proportional to 56,632.22, 78,154.47 and 31,140.52

Step by Step Solution

1. Step 1: Write the proportion equation
   56,632.22 : 78,154.47 = 31,140.52 : x
2. Step 2: Convert to fraction form
   56,632.22/78,154.47 = 31,140.52/x
3. Step 3: Cross multiply
   56,632.22x = 78,154.47 × 31,140.52
4. Step 4: Simplify right side
   56,632.22x = 2,433,770,875.81
5. Step 5: Solve for x
   x = 2,433,770,875.81/56,632.22
6. Step 6: Final answer
   x = 42,975.03