Finding the Fourth Proportional to 61,011,556.24, 91,847,178.60 and 55,581,548.72

Step by Step Solution

1. Step 1: Write the proportion equation
   61,011,556.24 : 91,847,178.60 = 55,581,548.72 : x
2. Step 2: Convert to fraction form
   61,011,556.24/91,847,178.60 = 55,581,548.72/x
3. Step 3: Cross multiply
   61,011,556.24x = 91,847,178.60 × 55,581,548.72
4. Step 4: Simplify right side
   61,011,556.24x = 5,105,008,432,150,441
5. Step 5: Solve for x
   x = 5,105,008,432,150,441/61,011,556.24
6. Step 6: Final answer
   x = 83,672,811.30