Finding the Fourth Proportional to 74,736.86, 111,980.72 and 52,510.44

Step by Step Solution

1. Step 1: Write the proportion equation
   74,736.86 : 111,980.72 = 52,510.44 : x
2. Step 2: Convert to fraction form
   74,736.86/111,980.72 = 52,510.44/x
3. Step 3: Cross multiply
   74,736.86x = 111,980.72 × 52,510.44
4. Step 4: Simplify right side
   74,736.86x = 5,880,156,878.72
5. Step 5: Solve for x
   x = 5,880,156,878.72/74,736.86
6. Step 6: Final answer
   x = 78,678.14