Finding the Fourth Proportional to 78,422.11, 108,222.95 and 42,612.10

Step by Step Solution

1. Step 1: Write the proportion equation
   78,422.11 : 108,222.95 = 42,612.10 : x
2. Step 2: Convert to fraction form
   78,422.11/108,222.95 = 42,612.10/x
3. Step 3: Cross multiply
   78,422.11x = 108,222.95 × 42,612.10
4. Step 4: Simplify right side
   78,422.11x = 4,611,607,003.67
5. Step 5: Solve for x
   x = 4,611,607,003.67/78,422.11
6. Step 6: Final answer
   x = 58,804.94