Finding the Fourth Proportional to 78,827.74, 108,784.59 and 43,020.05

Step by Step Solution

1. Step 1: Write the proportion equation
   78,827.74 : 108,784.59 = 43,020.05 : x
2. Step 2: Convert to fraction form
   78,827.74/108,784.59 = 43,020.05/x
3. Step 3: Cross multiply
   78,827.74x = 108,784.59 × 43,020.05
4. Step 4: Simplify right side
   78,827.74x = 4,679,918,501.03
5. Step 5: Solve for x
   x = 4,679,918,501.03/78,827.74
6. Step 6: Final answer
   x = 59,368.93