Finding the Fourth Proportional to 112,571,489.62, 155,350,241.92 and 64,860,375.34

Step by Step Solution

1. Step 1: Write the proportion equation
   112,571,489.62 : 155,350,241.92 = 64,860,375.34 : x
2. Step 2: Convert to fraction form
   112,571,489.62/155,350,241.92 = 64,860,375.34/x
3. Step 3: Cross multiply
   112,571,489.62x = 155,350,241.92 × 64,860,375.34
4. Step 4: Simplify right side
   112,571,489.62x = 10,076,075,000,091,002
5. Step 5: Solve for x
   x = 10,076,075,000,091,002/112,571,489.62
6. Step 6: Final answer
   x = 89,508,231.92