Finding the Fourth Proportional to 72,071.04, 99,431.68 and 41,845.60

Step by Step Solution

1. Step 1: Write the proportion equation
   72,071.04 : 99,431.68 = 41,845.60 : x
2. Step 2: Convert to fraction form
   72,071.04/99,431.68 = 41,845.60/x
3. Step 3: Cross multiply
   72,071.04x = 99,431.68 × 41,845.60
4. Step 4: Simplify right side
   72,071.04x = 4,160,778,308.61
5. Step 5: Solve for x
   x = 4,160,778,308.61/72,071.04
6. Step 6: Final answer
   x = 57,731.63