Finding the Fourth Proportional to 78,770.09, 118,154.52 and 19,605.38

Step by Step Solution

1. Step 1: Write the proportion equation
   78,770.09 : 118,154.52 = 19,605.38 : x
2. Step 2: Convert to fraction form
   78,770.09/118,154.52 = 19,605.38/x
3. Step 3: Cross multiply
   78,770.09x = 118,154.52 × 19,605.38
4. Step 4: Simplify right side
   78,770.09x = 2,316,463,672.55
5. Step 5: Solve for x
   x = 2,316,463,672.55/78,770.09
6. Step 6: Final answer
   x = 29,407.91