Finding the Fourth Proportional to 74,931, 103,405.14 and 43,101.78

Step by Step Solution

1. Step 1: Write the proportion equation
   74,931 : 103,405.14 = 43,101.78 : x
2. Step 2: Convert to fraction form
   74,931/103,405.14 = 43,101.78/x
3. Step 3: Cross multiply
   74,931x = 103,405.14 × 43,101.78
4. Step 4: Simplify right side
   74,931x = 4,456,945,595.15
5. Step 5: Solve for x
   x = 4,456,945,595.15/74,931
6. Step 6: Final answer
   x = 59,480.66