Finding the Fourth Proportional to 55,730,162.57, 83,562,127.31 and 21,189,092.70

Step by Step Solution

1. Step 1: Write the proportion equation
   55,730,162.57 : 83,562,127.31 = 21,189,092.70 : x
2. Step 2: Convert to fraction form
   55,730,162.57/83,562,127.31 = 21,189,092.70/x
3. Step 3: Cross multiply
   55,730,162.57x = 83,562,127.31 × 21,189,092.70
4. Step 4: Simplify right side
   55,730,162.57x = 1,770,605,662,147,122.25
5. Step 5: Solve for x
   x = 1,770,605,662,147,122.25/55,730,162.57
6. Step 6: Final answer
   x = 31,771,047.86