Finding the Fourth Proportional to 55,392.04, 76,442.70 and 31,522.15

Step by Step Solution

1. Step 1: Write the proportion equation
   55,392.04 : 76,442.70 = 31,522.15 : x
2. Step 2: Convert to fraction form
   55,392.04/76,442.70 = 31,522.15/x
3. Step 3: Cross multiply
   55,392.04x = 76,442.70 × 31,522.15
4. Step 4: Simplify right side
   55,392.04x = 2,409,638,255.81
5. Step 5: Solve for x
   x = 2,409,638,255.81/55,392.04
6. Step 6: Final answer
   x = 43,501.53