Finding the Fourth Proportional to 71,803.89, 99,091.71 and 39,541.95

Step by Step Solution

1. Step 1: Write the proportion equation
   71,803.89 : 99,091.71 = 39,541.95 : x
2. Step 2: Convert to fraction form
   71,803.89/99,091.71 = 39,541.95/x
3. Step 3: Cross multiply
   71,803.89x = 99,091.71 × 39,541.95
4. Step 4: Simplify right side
   71,803.89x = 3,918,279,442.23
5. Step 5: Solve for x
   x = 3,918,279,442.23/71,803.89
6. Step 6: Final answer
   x = 54,569.18