Finding the Fourth Proportional to 78,327, 108,090.72 and 42,517.98

Step by Step Solution

1. Step 1: Write the proportion equation
   78,327 : 108,090.72 = 42,517.98 : x
2. Step 2: Convert to fraction form
   78,327/108,090.72 = 42,517.98/x
3. Step 3: Cross multiply
   78,327x = 108,090.72 × 42,517.98
4. Step 4: Simplify right side
   78,327x = 4,595,799,071.15
5. Step 5: Solve for x
   x = 4,595,799,071.15/78,327
6. Step 6: Final answer
   x = 58,674.52