Finding the Fourth Proportional to 223,985,443.70, 309,084,128.51 and 124,861,806.50

Step by Step Solution

1. Step 1: Write the proportion equation
   223,985,443.70 : 309,084,128.51 = 124,861,806.50 : x
2. Step 2: Convert to fraction form
   223,985,443.70/309,084,128.51 = 124,861,806.50/x
3. Step 3: Cross multiply
   223,985,443.70x = 309,084,128.51 × 124,861,806.50
4. Step 4: Simplify right side
   223,985,443.70x = 38,592,802,644,067,024
5. Step 5: Solve for x
   x = 38,592,802,644,067,024/223,985,443.70
6. Step 6: Final answer
   x = 172,300,494.21