Finding the Fourth Proportional to 78,374.04, 108,156.15 and 42,564.06

Step by Step Solution

1. Step 1: Write the proportion equation
   78,374.04 : 108,156.15 = 42,564.06 : x
2. Step 2: Convert to fraction form
   78,374.04/108,156.15 = 42,564.06/x
3. Step 3: Cross multiply
   78,374.04x = 108,156.15 × 42,564.06
4. Step 4: Simplify right side
   78,374.04x = 4,603,564,857.97
5. Step 5: Solve for x
   x = 4,603,564,857.97/78,374.04
6. Step 6: Final answer
   x = 58,738.39