Finding the Fourth Proportional to 72,461.59, 99,998.15 and 46,978.18

Step by Step Solution

1. Step 1: Write the proportion equation
   72,461.59 : 99,998.15 = 46,978.18 : x
2. Step 2: Convert to fraction form
   72,461.59/99,998.15 = 46,978.18/x
3. Step 3: Cross multiply
   72,461.59x = 99,998.15 × 46,978.18
4. Step 4: Simplify right side
   72,461.59x = 4,697,730,605.48
5. Step 5: Solve for x
   x = 4,697,730,605.48/72,461.59
6. Step 6: Final answer
   x = 64,830.63