Finding the Fourth Proportional to 231,180,790.08, 319,075,837.98 and 137,147,131.46

Step by Step Solution

1. Step 1: Write the proportion equation
   231,180,790.08 : 319,075,837.98 = 137,147,131.46 : x
2. Step 2: Convert to fraction form
   231,180,790.08/319,075,837.98 = 137,147,131.46/x
3. Step 3: Cross multiply
   231,180,790.08x = 319,075,837.98 × 137,147,131.46
4. Step 4: Simplify right side
   231,180,790.08x = 43,760,335,897,152,728
5. Step 5: Solve for x
   x = 43,760,335,897,152,728/231,180,790.08
6. Step 6: Final answer
   x = 189,290,536.99