Finding the Fourth Proportional to 78,368.04, 108,147.87 and 42,558.05

Step by Step Solution

1. Step 1: Write the proportion equation
   78,368.04 : 108,147.87 = 42,558.05 : x
2. Step 2: Convert to fraction form
   78,368.04/108,147.87 = 42,558.05/x
3. Step 3: Cross multiply
   78,368.04x = 108,147.87 × 42,558.05
4. Step 4: Simplify right side
   78,368.04x = 4,602,562,729.22
5. Step 5: Solve for x
   x = 4,602,562,729.22/78,368.04
6. Step 6: Final answer
   x = 58,730.10