Finding the Fourth Proportional to 52,556,592.72, 72,001,327.20 and 50,591,642.48

Step by Step Solution

1. Step 1: Write the proportion equation
   52,556,592.72 : 72,001,327.20 = 50,591,642.48 : x
2. Step 2: Convert to fraction form
   52,556,592.72/72,001,327.20 = 50,591,642.48/x
3. Step 3: Cross multiply
   52,556,592.72x = 72,001,327.20 × 50,591,642.48
4. Step 4: Simplify right side
   52,556,592.72x = 3,642,665,403,787,899.50
5. Step 5: Solve for x
   x = 3,642,665,403,787,899.50/52,556,592.72
6. Step 6: Final answer
   x = 69,309,390.42