Finding the Fourth Proportional to 74,071.68, 102,219.72 and 42,242.46

Step by Step Solution

1. Step 1: Write the proportion equation
   74,071.68 : 102,219.72 = 42,242.46 : x
2. Step 2: Convert to fraction form
   74,071.68/102,219.72 = 42,242.46/x
3. Step 3: Cross multiply
   74,071.68x = 102,219.72 × 42,242.46
4. Step 4: Simplify right side
   74,071.68x = 4,318,012,433.31
5. Step 5: Solve for x
   x = 4,318,012,433.31/74,071.68
6. Step 6: Final answer
   x = 58,295.05