Finding the Fourth Proportional to 112,967.22, 155,889.15 and 64,567.70

Step by Step Solution

1. Step 1: Write the proportion equation
   112,967.22 : 155,889.15 = 64,567.70 : x
2. Step 2: Convert to fraction form
   112,967.22/155,889.15 = 64,567.70/x
3. Step 3: Cross multiply
   112,967.22x = 155,889.15 × 64,567.70
4. Step 4: Simplify right side
   112,967.22x = 10,065,403,870.46
5. Step 5: Solve for x
   x = 10,065,403,870.46/112,967.22
6. Step 6: Final answer
   x = 89,100.22