Finding the Fourth Proportional to 139,549,944.56, 209,308,431.72 and 37,321,905.20

Step by Step Solution

1. Step 1: Write the proportion equation
   139,549,944.56 : 209,308,431.72 = 37,321,905.20 : x
2. Step 2: Convert to fraction form
   139,549,944.56/209,308,431.72 = 37,321,905.20/x
3. Step 3: Cross multiply
   139,549,944.56x = 209,308,431.72 × 37,321,905.20
4. Step 4: Simplify right side
   139,549,944.56x = 7,811,789,446,214,514
5. Step 5: Solve for x
   x = 7,811,789,446,214,514/139,549,944.56
6. Step 6: Final answer
   x = 55,978,448.94