Finding the Fourth Proportional to 113,830.48, 170,701.96 and 78,663.52

Step by Step Solution

1. Step 1: Write the proportion equation
   113,830.48 : 170,701.96 = 78,663.52 : x
2. Step 2: Convert to fraction form
   113,830.48/170,701.96 = 78,663.52/x
3. Step 3: Cross multiply
   113,830.48x = 170,701.96 × 78,663.52
4. Step 4: Simplify right side
   113,830.48x = 13,428,017,044.50
5. Step 5: Solve for x
   x = 13,428,017,044.50/113,830.48
6. Step 6: Final answer
   x = 117,965.04