Finding the Fourth Proportional to 74,981.40, 112,518.57 and 30,608.10

Step by Step Solution

1. Step 1: Write the proportion equation
   74,981.40 : 112,518.57 = 30,608.10 : x
2. Step 2: Convert to fraction form
   74,981.40/112,518.57 = 30,608.10/x
3. Step 3: Cross multiply
   74,981.40x = 112,518.57 × 30,608.10
4. Step 4: Simplify right side
   74,981.40x = 3,443,979,642.42
5. Step 5: Solve for x
   x = 3,443,979,642.42/74,981.40
6. Step 6: Final answer
   x = 45,931.12