Finding the Fourth Proportional to 121,061,064.37, 181,590,399.85 and 55,463,595.21

Step by Step Solution

1. Step 1: Write the proportion equation
   121,061,064.37 : 181,590,399.85 = 55,463,595.21 : x
2. Step 2: Convert to fraction form
   121,061,064.37/181,590,399.85 = 55,463,595.21/x
3. Step 3: Cross multiply
   121,061,064.37x = 181,590,399.85 × 55,463,595.21
4. Step 4: Simplify right side
   121,061,064.37x = 10,071,656,431,302,444
5. Step 5: Solve for x
   x = 10,071,656,431,302,444/121,061,064.37
6. Step 6: Final answer
   x = 83,194,844.55