Finding the Fourth Proportional to 74,443.16, 102,726.24 and 42,611.60

Step by Step Solution

1. Step 1: Write the proportion equation
   74,443.16 : 102,726.24 = 42,611.60 : x
2. Step 2: Convert to fraction form
   74,443.16/102,726.24 = 42,611.60/x
3. Step 3: Cross multiply
   74,443.16x = 102,726.24 × 42,611.60
4. Step 4: Simplify right side
   74,443.16x = 4,377,329,448.38
5. Step 5: Solve for x
   x = 4,377,329,448.38/74,443.16
6. Step 6: Final answer
   x = 58,800.96