Finding the Fourth Proportional to 216,250,075.89, 298,409,612.04 and 126,945,646.16

Step by Step Solution

1. Step 1: Write the proportion equation
   216,250,075.89 : 298,409,612.04 = 126,945,646.16 : x
2. Step 2: Convert to fraction form
   216,250,075.89/298,409,612.04 = 126,945,646.16/x
3. Step 3: Cross multiply
   216,250,075.89x = 298,409,612.04 × 126,945,646.16
4. Step 4: Simplify right side
   216,250,075.89x = 37,881,801,019,280,672
5. Step 5: Solve for x
   x = 37,881,801,019,280,672/216,250,075.89
6. Step 6: Final answer
   x = 175,175,897.00