Finding the Fourth Proportional to 78,938,846.43, 118,399,224.69 and 20,652,151.34

Step by Step Solution

1. Step 1: Write the proportion equation
   78,938,846.43 : 118,399,224.69 = 20,652,151.34 : x
2. Step 2: Convert to fraction form
   78,938,846.43/118,399,224.69 = 20,652,151.34/x
3. Step 3: Cross multiply
   78,938,846.43x = 118,399,224.69 × 20,652,151.34
4. Step 4: Simplify right side
   78,938,846.43x = 2,445,198,706,244,548.50
5. Step 5: Solve for x
   x = 2,445,198,706,244,548.50/78,938,846.43
6. Step 6: Final answer
   x = 30,975,860.64