Finding the Fourth Proportional to 55,461.38, 76,538.59 and 30,312.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,461.38 : 76,538.59 = 30,312.50 : x
2. Step 2: Convert to fraction form
   55,461.38/76,538.59 = 30,312.50/x
3. Step 3: Cross multiply
   55,461.38x = 76,538.59 × 30,312.50
4. Step 4: Simplify right side
   55,461.38x = 2,320,075,550.90
5. Step 5: Solve for x
   x = 2,320,075,550.90/55,461.38
6. Step 6: Final answer
   x = 41,832.28