Finding the Fourth Proportional to 112,851.02, 155,684.33 and 72,549.47

Step by Step Solution

1. Step 1: Write the proportion equation
   112,851.02 : 155,684.33 = 72,549.47 : x
2. Step 2: Convert to fraction form
   112,851.02/155,684.33 = 72,549.47/x
3. Step 3: Cross multiply
   112,851.02x = 155,684.33 × 72,549.47
4. Step 4: Simplify right side
   112,851.02x = 11,294,815,927.33
5. Step 5: Solve for x
   x = 11,294,815,927.33/112,851.02
6. Step 6: Final answer
   x = 100,086.08