Finding the Fourth Proportional to 58,549.72, 80,845.20 and 54,071.84

Step by Step Solution

1. Step 1: Write the proportion equation
   58,549.72 : 80,845.20 = 54,071.84 : x
2. Step 2: Convert to fraction form
   58,549.72/80,845.20 = 54,071.84/x
3. Step 3: Cross multiply
   58,549.72x = 80,845.20 × 54,071.84
4. Step 4: Simplify right side
   58,549.72x = 4,371,448,719.17
5. Step 5: Solve for x
   x = 4,371,448,719.17/58,549.72
6. Step 6: Final answer
   x = 74,662.16