Finding the Fourth Proportional to 74,061, 102,201.64 and 42,240.15

Step by Step Solution

1. Step 1: Write the proportion equation
   74,061 : 102,201.64 = 42,240.15 : x
2. Step 2: Convert to fraction form
   74,061/102,201.64 = 42,240.15/x
3. Step 3: Cross multiply
   74,061x = 102,201.64 × 42,240.15
4. Step 4: Simplify right side
   74,061x = 4,317,012,603.85
5. Step 5: Solve for x
   x = 4,317,012,603.85/74,061
6. Step 6: Final answer
   x = 58,289.96