Finding the Fourth Proportional to 53,280.18, 79,894.35 and 31,100.76

Step by Step Solution

1. Step 1: Write the proportion equation
   53,280.18 : 79,894.35 = 31,100.76 : x
2. Step 2: Convert to fraction form
   53,280.18/79,894.35 = 31,100.76/x
3. Step 3: Cross multiply
   53,280.18x = 79,894.35 × 31,100.76
4. Step 4: Simplify right side
   53,280.18x = 2,484,775,004.71
5. Step 5: Solve for x
   x = 2,484,775,004.71/53,280.18
6. Step 6: Final answer
   x = 46,636.01