Finding the Fourth Proportional to 258,308,306.98, 356,455,196.09 and 152,495,806.34

Step by Step Solution

1. Step 1: Write the proportion equation
   258,308,306.98 : 356,455,196.09 = 152,495,806.34 : x
2. Step 2: Convert to fraction form
   258,308,306.98/356,455,196.09 = 152,495,806.34/x
3. Step 3: Cross multiply
   258,308,306.98x = 356,455,196.09 × 152,495,806.34
4. Step 4: Simplify right side
   258,308,306.98x = 54,357,922,551,827,360
5. Step 5: Solve for x
   x = 54,357,922,551,827,360/258,308,306.98
6. Step 6: Final answer
   x = 210,438,151.17