Finding the Fourth Proportional to 74,784.06, 103,219.72 and 42,971.41

Step by Step Solution

1. Step 1: Write the proportion equation
   74,784.06 : 103,219.72 = 42,971.41 : x
2. Step 2: Convert to fraction form
   74,784.06/103,219.72 = 42,971.41/x
3. Step 3: Cross multiply
   74,784.06x = 103,219.72 × 42,971.41
4. Step 4: Simplify right side
   74,784.06x = 4,435,496,929.80
5. Step 5: Solve for x
   x = 4,435,496,929.80/74,784.06
6. Step 6: Final answer
   x = 59,310.73