Finding the Fourth Proportional to 74,070.30, 102,216.56 and 42,238.52

Step by Step Solution

1. Step 1: Write the proportion equation
   74,070.30 : 102,216.56 = 42,238.52 : x
2. Step 2: Convert to fraction form
   74,070.30/102,216.56 = 42,238.52/x
3. Step 3: Cross multiply
   74,070.30x = 102,216.56 × 42,238.52
4. Step 4: Simplify right side
   74,070.30x = 4,317,476,213.89
5. Step 5: Solve for x
   x = 4,317,476,213.89/74,070.30
6. Step 6: Final answer
   x = 58,288.90