Finding the Fourth Proportional to 55,322.60, 76,345.23 and 30,172.10

Step by Step Solution

1. Step 1: Write the proportion equation
   55,322.60 : 76,345.23 = 30,172.10 : x
2. Step 2: Convert to fraction form
   55,322.60/76,345.23 = 30,172.10/x
3. Step 3: Cross multiply
   55,322.60x = 76,345.23 × 30,172.10
4. Step 4: Simplify right side
   55,322.60x = 2,303,495,645.50
5. Step 5: Solve for x
   x = 2,303,495,645.50/55,322.60
6. Step 6: Final answer
   x = 41,637.52