Finding the Fourth Proportional to 78,963.18, 108,970.72 and 43,155.38

Step by Step Solution

1. Step 1: Write the proportion equation
   78,963.18 : 108,970.72 = 43,155.38 : x
2. Step 2: Convert to fraction form
   78,963.18/108,970.72 = 43,155.38/x
3. Step 3: Cross multiply
   78,963.18x = 108,970.72 × 43,155.38
4. Step 4: Simplify right side
   78,963.18x = 4,702,672,830.47
5. Step 5: Solve for x
   x = 4,702,672,830.47/78,963.18
6. Step 6: Final answer
   x = 59,555.26