Finding the Fourth Proportional to 148,641.20, 222,995.86 and 64,415.50

Step by Step Solution

1. Step 1: Write the proportion equation
   148,641.20 : 222,995.86 = 64,415.50 : x
2. Step 2: Convert to fraction form
   148,641.20/222,995.86 = 64,415.50/x
3. Step 3: Cross multiply
   148,641.20x = 222,995.86 × 64,415.50
4. Step 4: Simplify right side
   148,641.20x = 14,364,389,819.83
5. Step 5: Solve for x
   x = 14,364,389,819.83/148,641.20
6. Step 6: Final answer
   x = 96,638.01