Finding the Fourth Proportional to 69,483,185.37, 104,225,526.50 and 20,961,459.72

Step by Step Solution

1. Step 1: Write the proportion equation
   69,483,185.37 : 104,225,526.50 = 20,961,459.72 : x
2. Step 2: Convert to fraction form
   69,483,185.37/104,225,526.50 = 20,961,459.72/x
3. Step 3: Cross multiply
   69,483,185.37x = 104,225,526.50 × 20,961,459.72
4. Step 4: Simplify right side
   69,483,185.37x = 2,184,719,175,420,735.25
5. Step 5: Solve for x
   x = 2,184,719,175,420,735.25/69,483,185.37
6. Step 6: Final answer
   x = 31,442,415.37