Finding the Fourth Proportional to 55,326,047.51, 83,030,590.07 and 20,816,483.31

Step by Step Solution

1. Step 1: Write the proportion equation
   55,326,047.51 : 83,030,590.07 = 20,816,483.31 : x
2. Step 2: Convert to fraction form
   55,326,047.51/83,030,590.07 = 20,816,483.31/x
3. Step 3: Cross multiply
   55,326,047.51x = 83,030,590.07 × 20,816,483.31
4. Step 4: Simplify right side
   55,326,047.51x = 1,728,404,892,307,524.25
5. Step 5: Solve for x
   x = 1,728,404,892,307,524.25/55,326,047.51
6. Step 6: Final answer
   x = 31,240,346.46