Finding the Fourth Proportional to 64,128.34, 88,498.16 and 37,261.05

Step by Step Solution

1. Step 1: Write the proportion equation
   64,128.34 : 88,498.16 = 37,261.05 : x
2. Step 2: Convert to fraction form
   64,128.34/88,498.16 = 37,261.05/x
3. Step 3: Cross multiply
   64,128.34x = 88,498.16 × 37,261.05
4. Step 4: Simplify right side
   64,128.34x = 3,297,534,364.67
5. Step 5: Solve for x
   x = 3,297,534,364.67/64,128.34
6. Step 6: Final answer
   x = 51,420.86