Finding the Fourth Proportional to 78,303.61, 108,059.77 and 42,493.93

Step by Step Solution

1. Step 1: Write the proportion equation
   78,303.61 : 108,059.77 = 42,493.93 : x
2. Step 2: Convert to fraction form
   78,303.61/108,059.77 = 42,493.93/x
3. Step 3: Cross multiply
   78,303.61x = 108,059.77 × 42,493.93
4. Step 4: Simplify right side
   78,303.61x = 4,591,883,655.66
5. Step 5: Solve for x
   x = 4,591,883,655.66/78,303.61
6. Step 6: Final answer
   x = 58,642.05