Finding the Fourth Proportional to 74,978.34, 112,522.88 and 35,535.57

Step by Step Solution

1. Step 1: Write the proportion equation
   74,978.34 : 112,522.88 = 35,535.57 : x
2. Step 2: Convert to fraction form
   74,978.34/112,522.88 = 35,535.57/x
3. Step 3: Cross multiply
   74,978.34x = 112,522.88 × 35,535.57
4. Step 4: Simplify right side
   74,978.34x = 3,998,564,678.84
5. Step 5: Solve for x
   x = 3,998,564,678.84/74,978.34
6. Step 6: Final answer
   x = 53,329.60