Finding the Fourth Proportional to 74,536.56, 111,774.76 and 30,155.12

Step by Step Solution

1. Step 1: Write the proportion equation
   74,536.56 : 111,774.76 = 30,155.12 : x
2. Step 2: Convert to fraction form
   74,536.56/111,774.76 = 30,155.12/x
3. Step 3: Cross multiply
   74,536.56x = 111,774.76 × 30,155.12
4. Step 4: Simplify right side
   74,536.56x = 3,370,581,300.77
5. Step 5: Solve for x
   x = 3,370,581,300.77/74,536.56
6. Step 6: Final answer
   x = 45,220.51