Finding the Fourth Proportional to 78,747.96, 108,670.86 and 42,938.22

Step by Step Solution

1. Step 1: Write the proportion equation
   78,747.96 : 108,670.86 = 42,938.22 : x
2. Step 2: Convert to fraction form
   78,747.96/108,670.86 = 42,938.22/x
3. Step 3: Cross multiply
   78,747.96x = 108,670.86 × 42,938.22
4. Step 4: Simplify right side
   78,747.96x = 4,666,133,294.27
5. Step 5: Solve for x
   x = 4,666,133,294.27/78,747.96
6. Step 6: Final answer
   x = 59,254.02