Finding the Fourth Proportional to 78,374.17, 108,156.32 and 42,564.19

Step by Step Solution

1. Step 1: Write the proportion equation
   78,374.17 : 108,156.32 = 42,564.19 : x
2. Step 2: Convert to fraction form
   78,374.17/108,156.32 = 42,564.19/x
3. Step 3: Cross multiply
   78,374.17x = 108,156.32 × 42,564.19
4. Step 4: Simplify right side
   78,374.17x = 4,603,586,154.18
5. Step 5: Solve for x
   x = 4,603,586,154.18/78,374.17
6. Step 6: Final answer
   x = 58,738.56