Finding the Fourth Proportional to 72,584,420.10, 108,876,630.15 and 45,710,564.10

Step by Step Solution

1. Step 1: Write the proportion equation
   72,584,420.10 : 108,876,630.15 = 45,710,564.10 : x
2. Step 2: Convert to fraction form
   72,584,420.10/108,876,630.15 = 45,710,564.10/x
3. Step 3: Cross multiply
   72,584,420.10x = 108,876,630.15 × 45,710,564.10
4. Step 4: Simplify right side
   72,584,420.10x = 4,976,812,181,463,568
5. Step 5: Solve for x
   x = 4,976,812,181,463,568/72,584,420.10
6. Step 6: Final answer
   x = 68,565,846.15