Finding the Fourth Proportional to 65,987,643.36, 91,063,938.56 and 36,620,878.56

Step by Step Solution

1. Step 1: Write the proportion equation
   65,987,643.36 : 91,063,938.56 = 36,620,878.56 : x
2. Step 2: Convert to fraction form
   65,987,643.36/91,063,938.56 = 36,620,878.56/x
3. Step 3: Cross multiply
   65,987,643.36x = 91,063,938.56 × 36,620,878.56
4. Step 4: Simplify right side
   65,987,643.36x = 3,334,841,435,201,061.50
5. Step 5: Solve for x
   x = 3,334,841,435,201,061.50/65,987,643.36
6. Step 6: Final answer
   x = 50,537,362.23