Finding the Fourth Proportional to 74,105.12, 102,274.80 and 42,266.72

Step by Step Solution

1. Step 1: Write the proportion equation
   74,105.12 : 102,274.80 = 42,266.72 : x
2. Step 2: Convert to fraction form
   74,105.12/102,274.80 = 42,266.72/x
3. Step 3: Cross multiply
   74,105.12x = 102,274.80 × 42,266.72
4. Step 4: Simplify right side
   74,105.12x = 4,322,820,334.66
5. Step 5: Solve for x
   x = 4,322,820,334.66/74,105.12
6. Step 6: Final answer
   x = 58,333.63