Finding the Fourth Proportional to 40,989,929.69, 61,483,914.45 and 13,323,812.42

Step by Step Solution

1. Step 1: Write the proportion equation
   40,989,929.69 : 61,483,914.45 = 13,323,812.42 : x
2. Step 2: Convert to fraction form
   40,989,929.69/61,483,914.45 = 13,323,812.42/x
3. Step 3: Cross multiply
   40,989,929.69x = 61,483,914.45 × 13,323,812.42
4. Step 4: Simplify right side
   40,989,929.69x = 819,200,142,979,127.50
5. Step 5: Solve for x
   x = 819,200,142,979,127.50/40,989,929.69
6. Step 6: Final answer
   x = 19,985,400.05