Finding the Fourth Proportional to 58,461.92, 80,300.59 and 57,341.16

Step by Step Solution

1. Step 1: Write the proportion equation
   58,461.92 : 80,300.59 = 57,341.16 : x
2. Step 2: Convert to fraction form
   58,461.92/80,300.59 = 57,341.16/x
3. Step 3: Cross multiply
   58,461.92x = 80,300.59 × 57,341.16
4. Step 4: Simplify right side
   58,461.92x = 4,604,528,979.28
5. Step 5: Solve for x
   x = 4,604,528,979.28/58,461.92
6. Step 6: Final answer
   x = 78,761.17