Finding the Fourth Proportional to 74,870.56, 103,319.85 and 43,039.18

Step by Step Solution

1. Step 1: Write the proportion equation
   74,870.56 : 103,319.85 = 43,039.18 : x
2. Step 2: Convert to fraction form
   74,870.56/103,319.85 = 43,039.18/x
3. Step 3: Cross multiply
   74,870.56x = 103,319.85 × 43,039.18
4. Step 4: Simplify right side
   74,870.56x = 4,446,801,621.72
5. Step 5: Solve for x
   x = 4,446,801,621.72/74,870.56
6. Step 6: Final answer
   x = 59,393.19