Finding the Fourth Proportional to 78,549.84, 108,400.72 and 42,741.81

Step by Step Solution

1. Step 1: Write the proportion equation
   78,549.84 : 108,400.72 = 42,741.81 : x
2. Step 2: Convert to fraction form
   78,549.84/108,400.72 = 42,741.81/x
3. Step 3: Cross multiply
   78,549.84x = 108,400.72 × 42,741.81
4. Step 4: Simplify right side
   78,549.84x = 4,633,242,978.10
5. Step 5: Solve for x
   x = 4,633,242,978.10/78,549.84
6. Step 6: Final answer
   x = 58,984.75